| Directory > Science > Math > Combinatorics > Graph Theory > Open Problems Problem of the Month
Research problems collected by Bojan Mohar.
http://vega.fmf.uni-lj.si/~mohar/Problems.html
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Perfect Graphs
Conjectures and open problems, maintained at the AIM.
http://www.aimath.org/WWN/perfectgraph/
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Past Open Problems Columns
By Douglas B. West, from the SIAM Activity Group Newsletter in Discrete Mathematics.
http://www.math.uiuc.edu/~west/pcol/pcolink.html
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Graph Coloring Problems
Archive for the book "Graph Coloring Problems" by Tommy R. Jensen and Bjarne Toft (Wiley
Interscience 1995), dedicated to Paul Erdös. Gives progress and new problems.
http://www.imada.sdu.dk/Research/Graphcol/
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Open Problems in Topological Graph Theory
Compiled by Patrice Ossona de Mendez.
http://www.ehess.fr/centres/cams/person/pom/open.html
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Problems in Topological Graph Theory
Web text by Dan Archdeacon with a list of open questions in topological graph theory.
http://www.emba.uvm.edu/~archdeac/newlist/problems.html
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Problems in Graph Theory
Maintained by Peter Cameron.
http://www.maths.qmw.ac.uk/~pjc/oldprob.html
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Perfect Problems
Unsolved problems on perfect graphs.
http://www.cs.rutgers.edu/~chvatal/perfect/problems.html
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Problems in Signed, Gain, and Biased Graphs
Compiled by Thomas Zaslavsky.
http://www.math.binghamton.edu/zaslav/Bsg/sgbgprobs.html
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Some Open Problems in Algebraic Combinatorics
Compiled by Bill Martin.
http://www.uwinnipeg.ca/~martin/RESEARCH/open.html
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Some Open Problems
Open problems and conjectures concerning the determination of properties of families of graphs.
http://www.eecs.umich.edu/~qstout/constantques.html
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Gordon Royle's Open Questions
Colouring, algebraic graph theory, geometries.
http://www.cs.uwa.edu.au/~gordon/remote/questions.html
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Three for the Money: The Degree/Diameter Problem
Students can understand and work on an unsolved problem in mathematics.
http://www.c3.lanl.gov/mega-math/workbk/graph/grthree.html
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Some Open Problems
Kézdy's open problems.
http://athena.louisville.edu/~aekezd01/open/open.html
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Open Problems in Graph Algorithms
Compiled by Jerry Spinrad.
http://www.vuse.vanderbilt.edu/~spin/open.html
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Open Problems on Graph Minors
By Nathaniel Dean.
http://dimacs.rutgers.edu/~nate/publics/open.ps
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Unsolved Problems
Including the list of 50 problems of Bondy and Murty with current status. Compiled by Stephen C.
Locke.
http://www.math.fau.edu/locke/unsolved.htm
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Some Open Problems in Graph Theory
Open Problems involving Steiner distance.
http://www.uwinnipeg.ca/~ooellerm/open_problems/index.html
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Graph Theory Open Problems
Six problems suitable for undergraduate research projects.
http://dimacs.rutgers.edu/~hochberg/undopen/graphtheory/graphtheory.html
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