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whatUseek Directory Site Listings:
Bill Martin -- Open Problems
- Some Open Problems in Algebraic Combinatorics
Gordon Royle's Open Questions
- Colouring, algebraic graph theory, geometries.
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.
Graph Theory Open Problems
- Six problems suitable for undergraduate research projects.
Open Problems
- In topological graph theory.
Open Problems in Discrete Math
- Compiled by Matt de Vos.
Open Problems in Graph Algorithms
- Compiled by Jerry Spinrad.
Open Problems on Graph Minors
- By Nathaniel Dean.
Past Open Problems Columns
- By Douglas B. West, from the SIAM Activity Group Newsletter in Discrete Mathematics.
Perfect Problems
- Unsolved problems on perfect graphs.
Problems in Graph Theory
- Maintained by Peter Cameron.
Problems in Signed, Gain, and Biased Graphs
- Compiled by Thomas Zaslavsky
Problems in Topological Graph Theory
- Compiled by Dan Archdeacon
Snake-in-the-box Problem
- Current status, with bibliography.
Some Open Problems
- Kézdy's open problems
Some Open Problems
- Kézdy's open problems
Some Open Problems in Graph Theory
- Open Problems involving Steiner distance.
Three for the Money: The Degree/Diameter Problem
- Students can understand and work on an unsolved problem in mathematics.
Unsolved Mathematics Problems
- Math Soft collection of unsolved problems, by S. Finch
Unsolved Problems
- Unsolved Problems (including the list of 50 problems of Bondy and Murty with current status)
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