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Graph Theory (12)

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	Open Problems for Undergraduates - http://dimacs.rutgers.edu/~hochberg/undopen/ A collection of open problems in Discrete Mathematics which are currently being researched by members of the DIMACS community.
	Past Open Problems - http://www.math.uiuc.edu/~west/pcol/pcolink.html From the SIAM Activity Group Newsletter in Discrete Mathematics. In PostScript. Compiled by Douglas B. West.
	Some Problems in Matroid Theory - http://www.math.binghamton.edu/zaslav/Matroids/matroidprobs.html Thomas Zaslavsky of Binghamton State University of New York presents brief descriptions and references. Find information on Bonin's Projective Bound including the maximum r-flat, covering and packing by flats.
	Open Problems in Combinatorics - http://www.combinatorics.net/problems/ Features links to newsletters, workshops, and papers.
	Open Mathematical Questions - http://www.jdawiseman.com/papers/easymath/open_questions.html A few unsolved mathematical questions put together by Julian D. A. Wiseman.

Problems in Graph Theory and Combinatorics - http://www.math.uiuc.edu/~west/openp/ A collection maintained by Douglas B. West, of the University of Illinois. Features brief introductions, along with references cited. Topics include matching and independence, connectivity, graph homomorphism and circular coloring.

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