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 Jan 21 awarded Popular Question Apr 16 awarded Notable Question Apr 1 comment Comparison of abstract algebra structures RE comment#3: domains are rings and the first group operation is required to be commutative, but they also have a secondary operation (which I called monoid operation) that are, AFAICT, not required to be commutative. Apr 1 comment Comparison of abstract algebra structures RE comment#2: but I'm trying to list properties of a general vector space, not just R-vector space. Also, it's so commonly used still. Apr 1 comment Comparison of abstract algebra structures RE comment#1: Should 'monoid operation' be renamed to 'secondary operation' or something? When I called it 'monoid operation' I was thinking about then when a ring is formed, a secondary/different operation is required and a monoid is associated with it, in addition to the original group operation associated with an abelian group. Apr 1 revised Comparison of abstract algebra structures added 22 characters in body Apr 1 asked Comparison of abstract algebra structures Mar 20 awarded Necromancer Jan 17 revised Would it make sense to do a two-factor decomposition similar to singular-value decomposition? deleted 3 characters in body Jan 17 revised Would it make sense to do a two-factor decomposition similar to singular-value decomposition? added 186 characters in body Jan 17 revised Would it make sense to do a two-factor decomposition similar to singular-value decomposition? added 238 characters in body Jan 17 answered Would it make sense to do a two-factor decomposition similar to singular-value decomposition? Jan 15 comment Geometrical meanings of diagonalizable and normal matrices @dineshdileep, I wonder if "orthogonal matrix/matrices" in your description should be relaxed to "unitary matrix/matrices". Mar 18 revised Example of functions that grow faster than the exponential functions and/or factorial functions? added 8 characters in body Mar 17 answered Example of functions that grow faster than the exponential functions and/or factorial functions? Nov 27 awarded Popular Question Apr 30 awarded Yearling Jan 18 awarded Teacher Jan 11 accepted What are some general properties of $F(x, z) = \int f(x, y) f(y, z) dy$? Jan 11 accepted In Bayesian network graphs, how to systematically search for conditional independent nodes?