A new proof from the Australian science fiction writer Greg Egan and a 2011 proof anonymously posted online are now being hailed as significant advances on a puzzle mathematicians have been studying ...

This is the course webpage for Math304, Department of Mathematics, Simon Fraser University. Spring 2021. In this course we will investigate Rubik's cube, the 15-puzzle, TopSpin, and other permutation ...

Abstract: It is known that, when n is even, the number of permutations of {1,2,...,n} all of whose cycles have odd length equals the number of those all of whose cycles have even length. Adin, Hegedüs ...

Preparation for any exam requires an overall understanding and a rigorous practice of all the concepts to be tested in that exam. This can be achieved by a thorough learning of each topic given in the ...