Exact cover

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31	PDF Document Add to Reading List Source URL: www.math.jussieu.fr Language: English - Date: 2006-10-13 11:55:20 Homological algebra Projective module Injective module Projective cover Exact functor Module Essential extension Simple module Perfect ring Abstract algebra Algebra Module theory
32	PDF Document Add to Reading List Source URL: did.mat.uni-bayreuth.de Language: English - Date: 2011-05-20 08:46:43 Theoretical computer science Sudoku Donald Knuth Dancing Links Exact cover Polystick Matrix Symmetric matrix Algorithm Mathematics Search algorithms Recreational mathematics