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Dror Bar-Natan:
Talks:
Non-Commutative Gaussian Elimination and Rubik's Cube
Abstract. A simple generalization of Gaussian elimination to a
non-commutative setting allows us to solve the cube and a dozen other
permutation group puzzles in no effort at all.
Talk video. .
Handout:
NCGE.html,
NCGE.pdf,
NCGE.png.
Sources: NCGE.zip.
Pensieve / Program: 2013-01: NCGE.