User:Noosfractal/Unsolved problems in mathematics

Unsolved problems

 * Is the Euler-Mascheroni constant a rational number?
 * Is &pi; a normal number?
 * Are &pi; and e algebraically independent?

Sites listing unsolved problems

 * article at mathworld http://mathworld.wolfram.com/UnsolvedProblems.html
 * category page at mathworld http://mathworld.wolfram.com/topics/UnsolvedProblems.html
 * http://directory.google.com/Top/Science/Math/Research/Open_Problems/
 * The Open Problems Project http://maven.smith.edu/~orourke/TOPP/
 * Kirby's 360 page list of open problems in Topology http://math.berkeley.edu/~kirby/
 * Graph Theory and Combinatorics http://www.math.uiuc.edu/~west/openp/
 * Open Problems Column Archive http://www.math.uiuc.edu/~west/pcol/pcolink.html
 * Kimberling's Open Problems http://faculty.evansville.edu/ck6/integer/unsolved.html
 * Eremenko's Open Problems http://www.math.purdue.edu/~eremenko/uns.html


 * Eppstein's Open Problems in Geometry http://www.ics.uci.edu/~eppstein/junkyard/open.html
 * Most wanted at mathpages.com http://www.mathpages.com/home/mwlist.htm