孤独乱语

Open Problems

Some Problems in Matroid Theory by Thomas Zaslavsky

http://www.math.binghamton.edu/zaslav/Matroids/matroidprobs.html

Problem of the month by Bojan Mohar

http://www.fmf.uni-lj.si/~mohar/Problems.html

PERFECT PROBLEMS by Vašek Chvátal
http://www.cs.concordia.ca/~chvatal/perfect/problems.html

Problems in Topological Graph Theory by Dan Archdeacon

http://www.emba.uvm.edu/~archdeac/problems/problems.html

Open Problems - Graph Theory and Combinatorics by Douglas B. West

http://www.math.uiuc.edu/~west/openp/

由 beat 发表于 2005年09月22日 上午11点41分