UPC Computational Geometry Papers and Research Reports (2003-1992)

Papers are listed according to the date of their most visible publication.

 

2003

 

O. Aichholzer, F.Aurenhammer, F. Hurtado, H. Krasser. Towards compatible triangulations. Theoretical Computer Science, Volume 296, Num. 1,  pp. 3 - 13, 2003.

 

F. Hurtado, G. Liotta, H. Meijer. Efficient Computation of Proximity Graphs. Computational Geometry Theory and Applications 25, num.1-2, pp 35 - 49, 2003.

 

Jerôme Galtier, Ferran Hurtado, Marc Noy, Stephane Pérennes and Jorge Urrutia. Simultaneous edge flipping in triangulations. International Journal of Computational Geometry and Applications, Volume 13, Number 2, April 2003 .


Manuel Abellanas, Ferran Hurtado, Christian Icking, Elmar Langetepe, Rolf Klein, Lihong Ma, Belén Palop, Vera Sacristán. Voronoi Diagram for services neighboring a highway. Information Processing Letters, Volume 86, Issue 5, Pages 283-288, June 2003. 

colours. Jin Akiyama, Ferran Hurtado, Criel Merino and Jorge Urrutia.  A problem on hinged dissections with  To appear in Graphs and Combinatorics (accepted 2003).

F. Hurtado, C. Seara, S. Sethia. Red-Blue Separability Problems in 3D. To appear in Proc. CGA'03, LNCS series, Springer-Verlag.

 

N Coll, F. Hurtado, A. Sellarès, Approximating planar subdivisions and generalized Voronoi diagrams from random sections.  To appear in Proc. 19th European Conference on Computational Geometry, Bonn, March 2003.

 

M. Houle, F.  Hurtado, M. Noy, E.  Rivera-Campo. Graphs of triangulations and perfect matchings.  To appear in Proc. 19th European Conference on Computational Geometry, Bonn, March 2003.

 

O. Aichholzer, D. Bremner, E. Demaine, F. Hurtado, E. Kranakis, H. Krasser, S. Ramaswami, S. Sethia, S., J. Urrutia. Geometric games on triangulations.  To appear in Proc. 19th European Conference on Compu-tational Geometry, Bonn, March 2003.

 

M. Abellanas, F. Hurtado, C. Icking, L. Ma, B. Palop P. Ramos. Best fitting rectangles.  To appear in Proc. 19th European Conference on Computational Geometry, Bonn, March 2003.

                  

 

2002

 

O. Aichholzer, L. Alboul, F. Hurtado, On flips in polyhedral surfaces. International Journal of Foundations of Computer Science, Vol. 13 No. 2, pp. 303-311, 2002.

 

O. Aichholzer, F, Aurenhammer, F. Hurtado, Sequences of spanning trees and a fixed tree theorem. Computational Geometry Theory and Applications 21, num. 1-2, pp. 3-20, 2002.

 

E. Arkin, S. Fekete, F. Hurtado, J. Mitchell, M. Noy, V. Sacristán, S. Sethia, On the reflexivity of point sets. To appear in The Goodman-Pollack Festschrift (book by Springer) (accepted 2002).

 

P. Bose, F. Hurtado, H. Meijer, S. Ramaswami, D. Rappaport, V. Sacristán, T. Shermer, G.  Toussaint. Finding specified sections of arrangements: 2D results. J. of Mathematical Modelling and Algorithms Vol. 1, Num. 1, pp. 3-16, 2002.

 

P. Bose, F. Hurtado, E. Omaña, J. Snoeyink, G. T. Toussaint, Aperture Angle Problems. Algorithmica Vol. 33,  pp. 411-435, 2002.

 

D. Bremner, F. Hurtado, S. Ramaswami, V. Sacristán,  Small Convex Quadrangulations of Point Sets. To appear in Algorithmica (accepted 2002).

 

B. Chazelle, O. Devillers, F. Hurtado, M. Mora, V. Sacristán, M. Teillaud. Splitting a Delaunay triangulation in linear time. Algorithmica Volume 34 - Number 1, pp. 39-46, 2002.

 

Devillers, F. Hurtado, G. Karolyi, C. Seara. Chromatic variants of the Erdös-SzekeresTheorem. To appear in Computational Geometry Theory and Applications (accepted 2002)

 

J.M. Díaz, F. Hurtado,  M. López, J.A. Sellarès. Optimal Projections onto Grids. Ext. abstract in Proc. 18th European Conference on Computational Geometry, pp. 51-55, Warsaw, April 2002.

 

J.M. Díaz, F. Hurtado,  H. Meijer, D. Rappaport, J.Antoni Sellarès. The Largest Empty Annulus Problem.  Lecture Notes in Computer Science 2331, Springer-Verlag, 2002, pp. 46-54 (Proc. 2nd Intern. Workshop on  Comp. Geom. and Applic. (CGA'02) Amsterdam,  April 2002).

 

García-Olaverri, C. Hernando, F. Hurtado, M. Noy, J.Tejel, Packing trees into planar graphs. Journal of Graph Theory Volume 40, Issue 3, pp.172-181, 2002.

 

García-Olaverri, F. Hurtado, M. Noy, J. Tejel, On the minimum size of visibility graphs. Information Processing Letters Vol. 81, Num. 4, 28, pp. 223-230, 2002.

 

F. Gómez, F. Hurtado, S. Ramaswami, V. Sacristán, G. Toussaint, Implicit convex polygons. J. of Mathematical Modelling and Algorithms Vol. 1, Num. 1, pp. 57-85, 2002.

 

C.Hernando, F. Hurtado, M. Noy. Graph of non-crossing perfect matchings. To appear in Graphs and Combinatorics (accepted 2002)

 

F. Hurtado, R. Klein, E. Langetepe, V. Sacristán, The weighted farthest color Voronoi diagram on trees and graphs. Ext. abstract in Proc. 18th European Conference on Computational Geometry, pp. 8-11, Warsaw, April 2002.

 

Antonio Montes. A New Algorithm for Discussing Gröbner Bases with Parameters. Journal of Symbolic Computation, 33, 1-2, pp. 183-208, 2002.

 

Antonio Montes. Edición de software en CD-ROM: Discussing Parametric Gröbner Bases: dpgb software. ACM ISBN: 1-58113-582-3. Université de Lille, ISSAC'02. Julio 2002.

 

Antonio Montes.  Discussing Parametric Gröbner Bases: dpgb software. Actas del EACA 2002, pp 165-170. Peñaranda de Duero. Septiembre 2002.

 

 

2001

 

M. Abellanas, M. Claverol, F. Hurtado, Wedge transversals of segments. In Actas de los IX Encuentros de GeometrÍa Computacional (in Spanish), pp. 75-84,Girona, 2001

 

M. Abellanas, F. Hurtado, C. Icking, R. Klein, E. Langetepe, L. Ma, B. Palop, V. Sacristán, Farthest color Voronoi diagram and related problems. In Proc. 17th European Conference on Computational Geometry, pp. 113-116, 2001. Also in Actas de los IX Encuentros de Geometría Computacional (in Spanish), pp.51-54, Girona, 2001.

 

M. Abellanas, F. Hurtado, C. Icking, R. Klein, E. Langetepe, L. Ma, B. Palop, V. Sacristán, Smallest color-spanning objects. To appear in Proc. 9th Annual European Symposium on Algorithms, Lecture Notes in Computer Science, Springer-Verlag, 2001.

 

M. Abellanas, F. Hurtado, C. Icking, R. Klein, E. Langetepe, L. Ma, B. Palop, V. Sacristán, Proximity problems for time metrics induced by the L1 metric and isothetic networks. In Actas de los IX Encuentros de GeometrÍa Computacional, pp. 175-182, Girona, 2001.

 

O. Aichholzer, L. Alboul, F. Hurtado, On flips in polyhedral surfaces.To appear in Int. J. foundations of Computer Science (accepted 2001). Extended abstract in Proc. 17th European Workshop on Computational Geometry, Berlin, 2001.

 

O. Aichholzer, F. Aurenhammer, F. Hurtado, Sequences of spanning trees and fixed-tree theorem. To appear in Computational Geometry Theory and Applications (accepted 2001). Extended abstract in Proc. 16th European Conference on Computational Geometry, Eilat, 2000.

 

O. Aichholzer, F. Aurenhammer, F. Hurtado, H. Krasser, Towards compatible triangulations. Lecture Notes in Computer Science 2108, pp. 101-110, Springer-Verlag (Proc. COCOON 2001. 7th Annual International Computing and Combinatorics Conference, Guilin, China.).

 

O. Aichholzer, D. Bremner, E. Demanine, H. Meijer, V. Sacristán, M. Soss, Long Proteins with unique Optimal Foldings in the H-P Model. In Proc. 17th european Workshop on Computational Geometry, pp. 59-62, 2001.

 

O. Aichholzer, F. Hurtad, M. Noy, On the number of triangulations every planar point set must have. Proceedings 13th Canadian Conference on Computational Geometry, pp. 13-16, Waterloo, 2001.

 

H. Alt, F. Hurtado, Packing convex polygons into rectangles. In Proc. Japanese Conf. on Discr. and Comp. Geom., Lecture Notes in Computer Science 2098, Springer-Verlag, 2001, 2000.

 

E. Arkin, S. Fekete, F. Hurtado, J. Mitchell, M. Noy, V. Sacristán, S. Sethia, On the reflexivity of point sets. To appear in Proc. WADS 2001. Seventh International Workshop on Algorithms and Data Structures, Lecture Notes in Computer Science, Springer-Verlag, 2001. Preliminary versions in Proc. Tenth Annual Fall Workshop On Computational Geometry, Stony Brook, NY, October 2000, and in Actas de los IX Encuentros de Geometría Computacional, pp. 239-248, Girona, 2001.

 

P. Bose, F. Hurtado, H. Meijer, S. Ramaswami, D. Rappaport, V. Sacristán, T. Shermer, G. Toussaint, Finding Specified Sections of Arrangements: 2D Results. To appear in International Journal of Mathematical Algorithms (accepted 2001). Preliminary version in Proceedings 10th Canadian Conference on Computational Geometry, pp. 20-21, Montréal, Canadá, 1998.

 

P. Bose, F. Hurtado, E. Omaña, J. Snoeyink, G. T. Toussaint, Aperture Angle Problems. To appear in Algorithmica (accepted 2001). Preliminary version in Proc. 7th Canadian Conference on Computational Geometry, pp. 73-78, Québec, 1995. Spanish version: Optimización del ángulo de apertura, Actas del IV Encuentro de Geometría Computacional, pp.14-20, Granada, 1993.

 

D. Bremner, F. Hurtado, S. Ramaswami, V. Sacristán,  Small Convex Quadrangulations of Point Sets.Lecture Notes in Computer Science 2223, Springer-Verlag, 2001, pp. 623-635 (Proc. Inte. Symp. on Algorithms and Computation (ISAAC), New Zealand,

 

J. M. Brunat, A. Montes, A determinant related to a convex basis of the space of homogeneous polynomials. To appear in SIAM Journal of Matrix Analysis, 23, num 2, pp 459-471, 2001.

 

B. Chazelle, O. Devillers, F. Hurtado, M. Mora, V. Sacristán, M. Teillaud, Splitting a Delaunay triangulation in linear time. To appear in Algorithmica (accepted  2001). Preliminary version to appear in Proc. 9th Annual European Symposium on Algorithms, Lecture Notes in Computer Science, Springer-Verlag, 2001.

 

C. Cortés, C. Grima, F. Hurtado, A. Márquez, F. Santos, J. Valenzuela, Transforming triangulations of polygons on non planar surfaces. In Proc. 17th European Workshop on Computational Geometry, pp. 31-34, 2001. Spanish version: Actas de los IX Encuentros de Geometría Computacional, pp. 127-136, Girona, 2001.

 

J. Czyzowicz, F. Hurtado, J.e Urrutia, N.b Zaguia,  On polygons enclosing point sets. Geombinatorics, Vol XI, Num. 1, pp. 21-28, 2001.

 

O. Devillers, R. Estkowski, P. -M. Gandoin, F. Hurtado, P. Ramos, V. Sacristán, Minimal set of constraints for 2D Constrained Delaunay Reconstruction. Tech. report 4119, INRIA Sophia-Antipolis. Spanish version: Actas de los IX Encuentros de Geometría Computacional, pp. 167-174, Girona, 2001.

 

O. Devillers, F. Hurtado, M. Mora, C. Seara, Separating several point sets in the plane. In Proc. 13th Canadian Conference on Computational Geometry, Waterloo, 2001. Preliminary version in Actas de los IX Encuentros de Geometría Computacional, pp. 107-116, Girona, 2001.

 

A. García, F. Hurtado, M. Noy, J. Tejel, The size of visibility graphs. To appear in Information Processing Letters (accepted 2001). Preliminary version in Proc. Int. Dagstuhl Seminar on Computational Geometry, pp-

class=Section2>

27-27, 1999. In Spanish in Actas de los VIII Encuentros de Geometría Computacional, pp. 19-26, Castellón, 1999.

 

A. García-Olaverri, F. Hurtado, M. Noy, J. Tejel, E. Abril, An algorithm for the augmentation of outerplanar graphs to 2-connected outerplanar. Spanish version in Actas de los IX Encuentros de Geometría Computacional, pp. 203-212, Girona, 2001.

 

A. García, M. Noy, J. Tejel, The asymptotic number of spanning trees in d-dimensional lattices. To appear in J. Combinat. Math. & Combinat. Comput. (accepted 2001).

 

F. Gómez, F. Hurtado, J.A. Sellarès, G. Toussaint, Nice Perspective Projections. Journal of Visual Communication and Image Representation Vol 12, n. 4, pp. 387-400, 2001.

 

F. Gómez, F. Hurtado, A. Sellarés and G. Toussaint, On degeneracies removable by perspective projection, International Journal of Mathematic Algorithms, Vol 2 , pp. 227-248, 2001.

 

C. Hernando, M. Houle, F. Hurtado, On Local Transformation of Polygons with Visibility Properties. To appear in Theoretical Computer Science (accepted 2001). Preliminary version in Proc. 6th International Computing and Combinatorics Conference (COCOON'00), Sydney, 2000.

 

F. Hurtado, G. Liotta, H. Meijer, Efficient Computation of Proximity Graphs. To appear in Proc. WADS 2001. Seventh International Workshop on Algorithms and Data Structures, Providence, USA, Lecture Notes in Computer Science, Springer-Verlag, 2001. Preliminary version in Proc. Tenth Annual Fall Workshop On Computational Geometry, StonyBrook, NY, October 2000. Extended abstract in Proc. 17th European Conference on Computational Geometry, pp. 117-120, 2001.

 

F. Hurtado, M. Noy, On the number of visibility graphs. Discrete Mathematics, Vol. 232, pp. 139-144, 2001.

 

F. Hurtado, M. Noy, P. A: Ramos, C. Seara, Separating objects in the plane with wedges and strips. Discrete Applied Mathematics 109, pp. 109-138, 2001. Preliminary version in Proceedings 10th Canadian Conference on Computational Geometry, pp.50-51 , Montréal, Canadá, 1998. Also in Proc. 14th European Conference on Computational Geometry, pp- 97-98, 1998.

 

 

2000

 

O. Aichholzer, F. Aurenhammer, F. Hurtado,  Sequences of spanning trees and fixed-tree theorem, Proc. 16th European Conference on Computational Geometry, pp. 121-125, Eilat, 2000.

 

O. Aichholzer, E. Demaine, J. Erickson, F. Hurtado, M. Overmars, M. Soss and G.Toussaint,  Reconfiguring Convex Polygons, aparecerá en Computational Geometry: Theory and applications (acept. 2000). Extended abstract en Proc.12th Canadian Conference on Computational Geometry, pp. 17-21, New Brunswick, 2000.

 

H. Alt, S. Felsner, F. Hurtado, M. Noy and E. Welzl, On point sets with few k-sets Computational Geometry: Theory and Applications, 16, pp. 95-101, 2000. Extended abstracts en Proc. 14th ACM Symp. on Comp. Geom., pp. 200-205, Minneapolis, 1998, y Proc. 14th European Conference on Computational Geometry, pp- 27-28, 1998.

 

H. Alt and F. Hurtado, Packing convex polygons into rectangles, aparecerá en Proc. Japanese Conf. on Discr. and Comp. Geom., Tokyo, 2000.

 

E. Arkin, S. Fekete, F. Hurtado, J. Mitchell, M. Noy, V. Sacristán, S. Sethia, On the reflexivity of point sets, Proc. Tenth Annual Fall Workshop On Computational Geometry, Stony Brook, NY, 2000.         

 

E. Arkin, F. Hurtado, J. Mitchell, C. Seara, S. Skiena, Some separability problems on the plane, Proc. 16th European Conference on Computational Geometry, pp. 51-54, Eilat, 2000.

 

E.Arkin, F. Hurtado, J.Mitchell, C. Seara and S. Skiena. Some lower bounds on geometric separability problems, Proc. II Jornadas Españolas de Matemática Discreta, pp. 11-14, 2000.         

 

J. M. Brunat, A. Montes, A determinant related to a convex basis of the space of homogeneous polynomials, Actas EACA-2000, p. 149-162, Septiembre 2000.

 

J. M. Brunat, A. Montes, Nuevo algoritmo para discutir sistemas polinómicos dependientes de parámetros. Actas EACA-2000, p. 297-310, Septiembre 2000.

 

E. Deutsch, M. Noy, New results on non-crossing trees, Proc. FPSAC'00, Moscu, junio 2000, Springer

 

E. Deutsch, S. Feretic, M. Noy, Diagonally convex directed polyominoes and even trees: a bijection and related issues, Proc. LACIM 2000, Montreal, 2000, Publications du LACIM, UQAM.

 

J. Miguel Díaz-Báñez, F. Gómez and F. Hurtado, Approximation of point sets by 1-corner polygonal chains. INFORMS Journal of Computing vol. 12, núm. 4, 317-328. Versión preliminar en Proc. 10th Canadian Conference on Computational Geometry, pp. 74-75, Montréal, Canadá, 1998 y en Actas de los VII Encuentros de Geometría Computacional (in Spanish), pp. 239-250, Madrid, 1997.

 

H. Everett, C. Hoóng, K. Kilakos, M. Noy, Planar segment visibility graphs, Comput. Geometry: Theory and Appl. 16 (2000) 235-243.

 

V. Estivill-Castro, M. Noy, J. Urrutia, On the chromatic number of tree-graphs, Discrete Mathematics 223 (2000) 363-366 .

 

S. Felsner, F. Hurtado, M. Noy and I. Streinu, Hamiltonicity and colorings of arrangement graphs, Proc. 15th ACM-SIAM Symposium on Discrete Algorithms, pp. 33-43, San Francisco, 2000.

 

P. Flajolet, M. Noy, Analytic combinatorics of chord diagrams, Proc. FPSAC'00, Moscu, junio 2000, Springer.

 

R. Guàrdia and F. Hurtado, On equipartitions of convex polygons, Proc. 16th European Conference on Computational Geometry, pp. 47-50, Eilat, 2000. Actas de los VIII Encuentros de Geometría Computacional (in Spanish), pp. 83-92, Casrtelló, 1999.

 

C. Hernando, M. Houle and F. Hurtado, On Local Transformation of Polygons with Visibility Properties, Lecture Notes in Computer Science 1858 (Proc. 6th International Computing and Combinatorics Conference (COCOON'00), Sydney), Springer-Verlag, 2000, pp. 54-63.

 

F. Hurtado, G. Liotta, H. Meijer, Efficient Computation of Proximity Graphs, Proc. Tenth Annual Fall Workshop On Computational Geometry, Stony Brook, NY, 2000.

 

F. Hurtado and M. M. Noy, On the number of visibility graphs, to appear in Discrete Mathematics (aceptado en 2000).

 

F. Hurtado, V. Sacristán and G. Toussaint, Some constrained minimax and maximin location problems, Studies in Locational Analysis. 15, pp. 17-35, 2000

 

C. Merino, A. de Mier, M. Noy, Irreducibility of the Tutte polynomial of a connected matroid, Proc. ACOTA-2000, Merida (Mexico), noviembre 2000, a publicar por la Sociedad Matematica Mexicana.

 

A. de Mier, M. Noy, Grafos determinados por su polinomio de Tutte, Actas de las II Jornadas Españolas de Matemática Discreta, pp. 34-37, 2000, Palma, setembre 2000.

 

 

 

1999

 

M. Abellanas, F. Hurtado, P. Ramos, Structural tolerance and Delaunay triangulation, Information Processing Letters. Vol. 71, pp. 221-227, 1999. Spanish version: Tolerancia de la triangulación de Delaunay, Actas del IV Encuentro de Geometría Computacional, Granada, 1993,  pp. 7-13.

 

D. Avis, B. Beresford, L. Devroye, H. Elgindy, E. Guévremont, F. Hurtado and B. Zhu, Unoriented 1-maxima. Complexity and Algorithms, SIAM Journal on Computing, Vol. 28, No. 1, pp. 278-296, 1999.

 

F. Cobos, C. Dana, C. Grima, F. Hurtado, A. Márquez, Computational geometry on the cylinder, Actas de los VIII Encuentros de Geometría Computacional, pp. 109-118, Castellón, 1999.

 

N. Coll, F. Hurtado, X. Pueyo, Estructura de visibilidad local para cálculos aproximados, Actas de los VIII Encuentros de Geometría Computacional, pp. 227-236, Castellón, 1999.

 

L. Devroye, P. Flajolet, F. Hurtado, M. Noy, W. Steiger, Properties of random triangulations and trees, Discrete and Computational Geometry, Vol. 1, n. 22, pp. 105-117, 1999.

 

H. Everett, F. Hurtado and M. Noy, Stabbing information of a simple polygon, Discrete Applied Mathematics, 91, pp- 67-82, 1999. Abstract in  Proc. 8th Canadian Conference on Computational Geometry, 1996, pp. 74-79.

 

A. García, F. Hurtado, M. Noy, J. Tejel, On the size of visibility graphs, Proc. Int. Dagstuhl Seminar on Computational Geometry, pp- 27-27, 1999. In Spanish in Actas de los VIII Encuentros de Geometría Computacional, pp. 19-26, Castellón, 1999.

 

R. Guàrdia, F. Hurtado, Partición de polígonos convexos por cuerdas, Actas de los VIII Encuentros de Geometría Computacional, pp. 83-92, Castellón, 1999.

 

Hernando, F. Hurtado, A. Márquez, M. Mora, M. Noy, Geometric Tree Graphs of Points in Convex Discrete Applied Mathematics 93, pp. 51-66, 1999. Spanish version in Actas de de los VII Encuentros de Geometría Computacional, pp. 107-120, Madrid, 1997.

 

C. Hernando, F. Hurtado, M. Mora, M. Noy, Nuevos resultados sobre grafos de árboles geométricos, Actas de los VIII Encuentros de Geometría Computacional, pp. 183-192, Castellón, 1999.

 

C. Hernando, F. Hurtado, M. Noy, Graphs of non-crossing matchings, Proc. 15th European Conference on Computational Geometry, pp- 97-100, 1999. In Spanish in Actas de los VIII Encuentros de Geometría Computacional, pp. 173-182, Castellón, 1999.

 

F. Hurtado, Una introducció a la geometria computacional, Biaix, 14, pp. 11-20, 1999.

 

F. Hurtado, Geometria computacional: una instantánea, La Gaceta de la RSME, 14, pp. 11-20, 1999.

 

F. Hurtado, M. Mora, P. Ramos, C. Seara, Two problems on separability with lines and polygons, Proc. 15th European Conference on Computational Geometry, pp- 33-36, 1999. In Spanish in  Actas de los VIII Encuentros de Geometría Computacional, pp. 73-84, Castellón, 1999.

 

F. Hurtado, M. Noy, Graph of Triangulations of a Convex Polygon and Tree of Triangulations, Computational Geometry: Theory and Applications 13, pp. 179-188, 1999.

 

F. Hurtado, M. Noy, J. Urrutia, Flipping Diagonals in Triangulations, Discrete and Computational Geometry, Vol. 22, n. 3, pp. 333-346, 1999.

 

F. Hurtado, B. Palop, V. Sacristán, Diagramas de Voronoi con distancias temporales, Actas de los VIII Encuentros de Geometría Computacional, pp. 10-20, Castellón, 1999.

 

Montes. Basic Algorithms for Specialization in Gröbner Basis. Actas del EACA'99, pp 215-228. Sta. Cruz de Tenerife, Septiembre 1999.

 

 

1998

 

H. Alt, S. Felsner, F. Hurtado, M. Noy, Point sets with few k-sets,  Proc. 14th ACM Symp. on Comp. Geom., pp. 200-205, Minneapolis, 1998. An abstract appeared also in Proc. 14th European Conference on Computational Geometry, pp- 27-28, 1998.

 

P. Bose, F. Hurtado, H. Meijer, S. Ramaswami, D. Rappaport, V. Sacristán, T. Shermer, G. Toussaint, Finding specified sections of arrangements, Proceedings 10th Canadian Conference on Computational Geometry, pp. 20-21, Montréal, Canadá, 1998.

 

C. Cortés, F. Hurtado, A. Márquez, A. Nakamoto, Edge flipping in triangulations of surfaces, Actas 14th European Conference on Computational Geometry, pp- 59-60, 1998.

 

J. C. Dana, C. Grima, F. Hurtado, A. Márquez, More results on computational geometry on the cylinder, Actas 14th European Conference on Computational Geometry, pp- 61-64, 1998.

 

J. M. Díaz, F. Gómez, F. Hurtado, Some problems on approximating a set of points by polygonal curves, Proceedings 10th Canadian Conference on Computational Geometry, pp. 74-75, Montréal, Canadá, 1998.

 

A. García-Olaverri, C. Hernando, F. Hurtado, M. Noy, J. Tejel, Packing trees into planar graphs, Proc. Graph Drawing 97, Lecture Notes in Computer Science, 1353, pp. 383-390, Springer-Verlag, 1998.

 

F. Gómez, F. Hurtado, G. Toussaint, Nice projections and object reconstruction, Proc. Mathematics and Design 98, pp. 441-450, Ed. Universidad del Pais Vasco, 1998.

 

F. Gómez, F. Hurtado, G. Toussaint, Perspective projections and removal of degeneracies, Proceedings 10th Canadian Conference on Computational Geometry, pp. 100-101, Montréal, Canadá, 1998.

 

F. Gómez, F. Hurtado, S. Ramaswami, V. Sacristán, G. Toussaint, Implicit convex polygons, Actas 14th European Conference on Computational Geometry, pp- 83-86, 1998.

 

C. Hernando, F. Hurtado, A. Márquez, M. Mora, M. Noy, Geometric tree graphs of points in the plane, Proceedings 10th Canadian Conference on Computational Geometry, pp. 40-41, Montréal, Canadá, 1998.

 

F. Hurtado, M. Noy, Problemas de combinatoria sobre puntos en el plano, Proc.Jornadas de Matemática Discreta., pp. 48-51, Barcelona,  1998.

 

F. Hurtado, M. Noy, J. Urrutia, Parallel edge flipping, Proceedings 10th Canadian Conference on Computational Geometry, pp. 26-27, Montréal, Canadá, 1998.

 

F. Hurtado, V. Sacristán, G. Toussaint, Constrained facility location, Proceedings 10th Canadian Conference on Computational Geometry, pp. 24-25, Montréal, Canadá, 1998.

 

F. Hurtado, A. Sellarés, Verificación de imágenes,  Actas del VIII Congreso Español de Informática Gráfica, pp. 163-176, Ourense, 1998.

 

A. Montes, Algebraic solution of the load-flow problem for 4-nodes electrical network, Mathematics and Computers in Simulation 45 (1998) 163-174.

                                                        

 

1997

 

M. Abellanas, M. Claverol and F. Hurtado, Estructuras de peso mínimo (in Spanish), Actas de de los VII Encuentros de Geometría Computacional, pp. 97-106, Madrid, 1997.

 

M. Abellanas, J. García, G. Hernández, M. Noy, P. Ramos, Bipartite embeddings of trees in the plane, Proc. Graph Drawing 96, Springer-Verlag LNCS 1190, pp.1-10, 1997..

 

J. M. Díaz, F. Gómez and F. Hurtado, Localización de servicios poligonales con restricción en el número de codos (in Spanish), Actas de de los VII Encuentros de Geometría Computacional, pp. 239-250, Madrid, 1997.

 

H. Everett, C.T. Hoang, K. Kilakos and M. Noy, Planar segment visibility graphs, Proc. 9th Canadian Conference on Computational Geometry, pp. 65-69, Kingston, Canada, 1997.

 

P. Flajolet and M. Noy, Analytic Combinatorics of Non-crossing Configurations, INRIA Report 3196, 1997. Submitted to Discrete Mathematics.

 

A. García Olaverri, C. Hernando, F. Hurtado, M. Noy, J. Tejel, Packing trees into planar graphs,  Proc. Graph Drawing 97, Springer-Verlag LNCS 1353, pp. 383-390 .

 

C. Hernando, F. Hurtado, A. Márquez, M. Mora and M. Noy, Geometric Tree Graphs of Points in Convex  Position, Abstracts 13th European Conference on Comp. Geom., pp. 28-29, Würzburg, 1997.

 

F. Hurtado and M. Noy, Counting triangulations of almost-convex polygons, Ars Combinatoria, Vol. 45, pp. 169-179, 1997.

 

F. Hurtado, M. Noy and C. Seara, Separación de puntos mediante cuñas y bandas (in Spanish), Actas de de los VII Encuentros de Geometría Computacional, pp. 45-56, Madrid, 1997.

 

F. Hurtado, M. Noy and Urrutia, Parallel edge flipping::combinatorial bounds, Proc. Journées Francoespagnoles de géométria algorithmique, pp. 49-52, Barcelona.

 

F. Hurtado, M. Noy and Urrutia, Intercambio secuencial y paralelo de aristas en triangulaciones (in Spanish), Actas de de los VII Encuentros de Geometría Computacional, pp. 81-88, Madrid, 1997.

 

F. Hurtado, V. Sacristán and G. Toussaint, Pruning can solve from facility location to visibility problems, Proc. Journées Francoespagnoles de géométria algorithmique, pp. 15-28, Barcelona.

 

F. Hurtado, V. Sacristán and G. Toussaint, Angulo de apertura de visión en dos y tres dimensiones (in Spanish), Actas de de los VII Encuentros de Geometría Computacional, pp. 15-28, Madrid, 1997.

 

F. Hurtado and T. Sellarès, Proyecciones perspectivas regulares. Correspondencia entre configuraciones (in Spanish), Actas de de los VII Encuentros de Geometría Computacional, pp. 57-70, Madrid, 1997.

 

E. Kranakis, D. Krizanc, A. Maheshwari, M. Noy, J.-R. Sack and J. Urrutia, Stage-Graph Representations, Discrete Applied Mathematics,Vol. 75, pp. 71-80, 1997.

 

 

1996

       

M. Abellanas, G. Hernández, J. García, F. Hurtado, O. Serra and J. Urrutia, Onion Polygonizations,  Information Processing Letters, 57, pp. 165-173, 1996. Preliminary Spanish version: Poligonizaciones cebolla, Actas del III Encuentro de Geometría Computacional, pp. 77-88, Zaragoza, 1992.

 

E. Arkin, Y. J. Chiang, M. Held, J. Mitchell, V. Sacristán, S. Skiena and T. C. Yang, On Minimum-Area Hulls, Proc. of the 4th European Symposium on Algorithms, LNCS 1136, Springer-Verlag, pp. 334-348, 1996. Full version to appear in Algorithmica.

 

F. Bauernoeppel, E. Kranakis, D. Krizanc, A. Maheshwari, M. Noy, J.-R. Sack and J. Urrutia, Optimal ray-shooting, Lecture Notes in Computer Science, 944, pp. 220-231, Springer Verlag, 1996 (Proceedings of ICALP 95).

 

G. Blanco, J. García, F. Hurtado, P. Ramos and V. Sacristán, Incidence angle restricted visibility. Tech. Rep. MA2-IR-96-004, Dept. Mat. Apl. II, Univ. Politècnica de Catalunya, 1996. Abstract in Abstracts of the 12th European Workshop on Comp. Geometry, Münster, 1996, pp. 27-28.

 

F. J. Cobos, J. C. Dana, F. Hurtado, A. Márquez and F. Mateos, On a Visibility Representation of Graphs, Graph Drawing 95. Lecture Notes in Computer Science, 1027, pp. 152-161, Springer Verlag, 1996. Spanish version: K_104080807 no es VHR-representable en R^4 pero K_80 sí, Actas de los VI Encuentros de Geometría Computacional, Barcelona, 1995, pp. 117-124.

 

N. Coll, F. Hurtado, and X. Pueyo, Método de Montecarlo global y adaptativo para factores de forma (in Spanish), Actas de las Jornadas Españolas de Informática Gráfica, pp. 183-192, 1196. Also in Tech. Rep. IMA 96-5, Universitat de Girona, 1996.

 

F. Gómez, F. Hurtado and G.T. Toussaint, Proyecciones de calidad (in Spanish), Actas del Congreso Español de Informática Gráfica, Valencia, 1996,  pp. 18-27.

 

F. Hurtado, Comprensió geomètrica i eficiència algorísmica, Butlletí de la Societat Catalana de Matemàtiques, Vol. 11, Num. 2, pp. 19-29, 1996.

 

F. Hurtado and M. Noy, Ears of Triangulations and Catalan Numbers, Discrete Mathematics 149, pp. 319-324, 1996.

 

F. Hurtado and M. Noy, Triangulations, visibility graph and reflex vertices of a simple polygon, Computational Geometry: Theory and Applications, Vol. 6, pp. 355-369, 1996.

 

F. Hurtado, M. Noy, J . M. Robert, V. Sacristán and S. Skiena, Visualizing objects with mirrors, Tech. Rep. 96-001, State University of NewYork at Stony Brook, 1996. Spanish version (partial): Visualización de objetos mediante espejos, Actas del VI Congreso Español de Informática Gráfica, Valencia, 1996, pp. 18-27.

 

F. Hurtado, M. Noy and J. Urrutia, Flipping Diagonals in Triangulations, Proceedings 12th ACM Conference on Computational Geometry, pp. 214-223, Philadelphia, USA, 1996. Full paper submitted to Discrete and Computational Geometry.

 

F. Hurtado, V. Sacristán and G. T. Toussaint, Constrained minimax facility location, Tech.Rep. MA2-IR-96-010, Dept. Mat. Apl. II, Univ. Politècnica de Catalunya, 1996. Submitted to Studies in Locational Analysis.

 

F. Hurtado, O. Serra and J. Urrutia, Hiding Points in Arrangements of Segments, Discrete Mathematics, Vol. 162, pp. 187-197, 1996

 

Montes. Solución algebraica del problema del transporte eléctrico para una red de cuatro nodos. Actas del EACA'96, pp 33-45. Sevilla, Septiembre 1996.

 

 

1995

 

M. Abellanas, F. Hurtado and P. Ramos, Redrawing a Graph Within a Geometric Tolerance, Graph Drawing 94. Lecture Notes in Computer Science, 894, pp. 246-253, Springer Verlag, 1995.

 

M. Abellanas, F. Hurtado and P. A. Ramos, Tolerancia de Arreglos de Segmentos (in Spanish), Actas de los VI Encuentros de Geometría Computacional, Barcelona, 1995, pp. 77-84.

 

G. Blanco, J. García, F. Hurtado, P. A. Ramos and V. Sacristán, Quality pictures,WWW Procedings of the Fifth MSI Workshop on Computational Geometry at Stony Brook, 1995. Spanish version: Fotografias de calidad, Actas de los VI Encuentros de Geometría Computacional, Barcelona, 1995, pp. 93-101.

 

P. Bose, F. Hurtado, E. Omaña, J. Snoeyink and G. T. Toussaint,  Aperture Angle Problems, Proceedings 7th Canadian Conference on Computational Geometry, pp. 73-78, Québec, Canada, 1995. Spanish version: Optimización del ángulo de apertura, Actas del IV  Encuentro de Geometría Computacional, Granada, 1993, pp. 14-20. Full version submitted to Algorithmica. 

 

A. García, M. Noy and J. Tejel. Lower bounds for the number of crossing-free subgraphs of K_n. Proceedings of the 7th Canadian Conference on Computational Geometry, pp. 89-95, Québec, Canada, 1995. Full version to appear in Computational Geometry: Theory and Applications.

 

R. Guàrdia and F. Hurtado, Cuadrados inscritos en curvas poligonales de Jordan (in Spanish), Actas de los VI Encuentros de Geometría Computacional, Barcelona, 1995, pp. 189-197.

 

Hernando, F. Hurtado and M. Noy, Tipos de orden circulares (in Spanish), Actas de los VI Encuentros de Geometría Computacional, Barcelona, 1995, 206-213.

 

F. Hurtado, M. Noy and S. Whitesides, Finding optimal k-partitions for points in convex position, IR-95-10, Dept. de Mat. Aplic. II, UPC, 1995.

 

F. Hurtado and J. Trias, Técnicas geométricas para la informática gráfica: prácticas de laboratorio (in Spanish),  Actas de las Jornadas sobre Nuevas Tecnologías en la Enseñanza de las Matemáticas en la Universidad, Barcelona, 1995, pp. 241-250.

 

A. Montes and J. Castro. Solving the Load-Flow Problem using Gröbner Basis. SIGSAM Bull. 29, pp 1-13. 1995.

 

A. Montes. Software Geométrico-Gráfico para Maple. Actas del TEMU'95. Barcelona, 1995.

 

M. Noy, Enumeration of non-crossing trees, Proceedings of the 7th Conference on Formal Power Series and Algebraic Combinatorics, 1995, pp. 441-449. To appear in Discrete Mathematics.

 

J. Trias and V. Sacristán, A Geometry Lab with Mathematica, Mathematica in Education and Research, Vol. 4, N. 2, 1995, pp. 23-30.

               

 

1994

 

M. Abellanas, J. García and F. Hurtado, Consecutive Guards, Proceedings Sixth Canadian Conference on Computational Geometry, pp. 393-398, Saskatoon, Canada, 1994.

 

M. Abellanas, F. Hurtado and P. Ramos, Tolerance of Geometric Structures, Proceedings Sixth Canadian Conference on Computational Geometry, pp. 250-255, Saskatoon, Canadá, 1994.

 

F. Hurtado and M. Noy, On the number of visibility graphs of simple polygons, Snapshots of Computational Geometry, D. Avis, P. Bose, Eds., pp. 100-107.  McGill University, 1994. Full version submitted to European Journal of Combinatorics.

 

F. Hurtado and M. Noy, The Graph of Triangulations of a Convex Polygon, IR-94-13, Dept. de Mat. Aplic. II, UPC, 1994. Abstract in Proceedings 12th ACM Conference on Computational Geometry, pp. C7-C8, Philadelphia, USA, 1996. Full version submitted to Computational Geometry: Theory and Applications.

 

F. Hurtado, M. Noy, O. Serra and J. Trias, Actividades del Grupo de Investigación en Geometría Computacional de la UPC (in Spanish), Actas del V Encuentro de Geometría  Computacional, Santander, 1994, pp. 16-21.

 

A. Montes. Solución Numérica de Sistemas de Ecuaciones mediante Bases de Gröbner. Métodos Numéricos en Ingeniería. Ed. SEMNI, pp 981-987. 1994.

 

 

 

1993

 

M. Abellanas,  J. García, G. Hernández, F. Hurtado, O. Serra and J. Urrutia, Updating Polygonizations, Computer Graphics Forum, vol. 12 no. 3, pp. 143-152, 1993.

 

F. Hurtado, Looking Through a Window, Proceedings Fifth Canadian Conference on Computational Geometry, pp. 234-239, St. John's, Canada, 1993.

 

F. Hurtado and M. Noy, El número de triangulaciones de un polígono (in Spanish), Actas del IV  Encuentro de Geometría Computacional, Granada, 1993, pp. 1-6.

 

Montes. Numerical Conditioning of a System of Algebraic Equations with a Finite Number of Solutions using Gröbner Basis. SIGSAM Bull., 27, pp 12-19. 1993.

 

Montes. Un programa efectivo para calcular las antiimágenes de la función de Euler. Actas de las Jornadas de Nuevas Tecnologías en Matemáticas, pp 99-108. Valencia 1993.

 

 

1992

 

J. Czyzowicz, F. Hurtado, J. Urrutia and N. Zaguia, Enclosible Sets, Proceedings Fourth Canadian Conference on Computational Geometry, pp. 132-136, St. John's, Canadá, 1992.

 

F. Hurtado, Poligonizaciones simples (in Spanish), Actas del III Encuentro de Geometría Computacional, pp. 67-76, Zaragoza, 1992.