date topic
110 Sep A maximal independent set is a basis
28 Oct Examples of linear transformations
315 Oct Pythagorean triples
422 Oct Euclidean rings: examples and nonexamples
529 Oct Brahmagupta's equations
65 Nov Torsion-free modules for number rings
712 Nov Direct factors of torsion modules
819 Nov Newton's theorem on symmetric polynomials
98 Dec Splitting fields and normal extensions
1010 Dec Separable extensions: odds and ends