Víctor Neumann-Lara (1933–2004) was a Mexicanmathematician and a pioneer in the field ofgraph theory inMexico. His work also coversgeneral topology,game theory andcombinatorics.

Born in the city ofcleveland,Hidalgo,Mexico, he soon moved toMexico City, where he received his bachelor's degree inmathematics from the School of Sciences,UNAM.

His life was greatly devoted to teaching, giving over 100 courses in Mexico and around the world, and introducing newteaching methods. He carried color chalks with him all the time, and was prompt to give graphic explanations.

Full Professor at the Institute of Mathematics,UNAM, he directed over 15 theses and taught both in the Institute and in the Faculty of Sciences. Below is a selection of his multiple publications, which earned him over 120 citations from renowned mathematicians in the area of graph theory.

In 1982 he introduced the notion of a dichromatic number of adigraph, which would eventually be used in kernel theory andtournament theory.

• Francisco Larrión, Víctor Neumann-Lara, Miguel A. Pizaña, Thomas Dale Porter "A hierarchy of self-clique graphs"Discrete Mathematics 282(1–3): 193–208 (2004)
• M. E. Frías-Armenta, Víctor Neumann-Lara, Miguel A. Pizaña "Dismantlings and iterated clique graphs"Discrete Mathematics 282(1–3): 263–265 (2004)
• Xueliang Li, Víctor Neumann-Lara, Eduardo Rivera-Campo "On a tree graph defined by a set of cycles"Discrete Mathematics 271(1–3): 303–310 (2003)
• Juan José Montellano-Ballesteros, Víctor Neumann-Lara "An Anti-Ramsey Theorem"Combinatorica 22(3): 445–449 (2002)
• Francisco Larrión, Víctor Neumann-Lara "On clique divergent graphs with linear growth"Discrete Mathematics 245(1–3): 139–153 (2002)
• Francisco Larrión, Víctor Neumann-Lara, Miguel A. Pizaña "Whitney triangulations, local girth and iterated clique graphs"Discrete Mathematics 258(1–3): 123–135 (2002)
• Francisco Larrión, Víctor Neumann-Lara, Miguel A. Pizaña "On the homotopy type of the clique graph"J. Braz. Comp. Soc. 7(3): 69–73 (2001)
• Francisco Larrión, Víctor Neumann-Lara "Locally C6 graphs are clique divergent"Discrete Mathematics 215: 159–170 (2000)
• Manuel Abellanas, G. Hernandez, Rolf Klein, Víctor Neumann-Lara,Jorge Urrutia "A Combinatorial Property of Convex Sets"Discrete & Computational Geometry 17(3): 307–318 (1997)
• Manuel Abellanas, G. Hernandez, Rolf Klein, Víctor Neumann-Lara,Jorge Urrutia "Voronoi Diagrams and Containment of Families of Convex Sets on the Plane"Symposium on Computational Geometry 71–78 (1995)
• Jorge L. Arocha, Javier Bracho, Víctor Neumann-Lara "Tight and Untight Triangulations of Surfaces by Complete Graphs"J. Comb. Theory, Ser. B 63(2): 185–199 (1995)
• Víctor Neumann-Lara, Eduardo Rivera-Campo "Spanning trees with bounded degrees"Combinatorica 11(1): 55–61 (1991)
• Roland Häggkvist,Pavol Hell, Donald J. Miller, Víctor Neumann-Lara "On multiplicative graphs and the product conjecture"Combinatorica 8(1): 63–74 (1988)
• Víctor Neumann-Lara, H. Galeana-Sánchez "On kernel-perfect critical digraphs"Discrete Math. 59: 257–265 (1986)
• Víctor Neumann-Lara, N. Santorro,Jorge Urrutia "Uniquely colourable m-dichromatic oriented graphs"Discrete Math. 62: 65–70 (1986)
• Víctor Neumann-Lara, Luis Montejano "A variation of Menger's theorem for long paths"J. Combin. Theory Ser. B 36: 213–217 (1984)
• Víctor Neumann-Lara,Jorge Urrutia "Vertex critical r-dichromatic tournaments"Discrete Math. 49: 83–87 (1984)
• Víctor Neumann-Lara, H. Galeana-Sanchez "On kernels and semikernels of digraphs"Discrete Math. 48: 67–76 (1984)
• Víctor Neumann-Lara "The dichromatic number of a digraph"J. Combin. Theory Ser. B 33: 265–270 (1982)
• Víctor Neumann-Lara "k-Hamiltonian graphs with given girth"Colloq. Math. Soc. János Bolyai 10: 1133–1142 (1975)

• A short biography in Spanish

• Graph Theory white pages
• Víctor Neumann-Lara at theMathematics Genealogy Project
• Victor Neumann-Lara atDBLP Bibliography Server

Mexican Jews

• 1933 births
• 2004 deaths
• 20th-century Mexican mathematicians
• Graph theorists
• Topologists
• National Autonomous University of Mexico alumni
• Mexican people of German-Jewish descent
• People from Huejutla de Reyes
• Academic staff of the National Autonomous University of Mexico

• Articles with short description
• Short description is different from Wikidata