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 Apr16 awarded Notable Question Apr1 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. Apr1 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. Apr1 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. Apr1 revised Comparison of abstract algebra structures added 22 characters in body Apr1 asked Comparison of abstract algebra structures Mar20 awarded Necromancer Jan17 revised Would it make sense to do a two-factor decomposition similar to singular-value decomposition? deleted 3 characters in body Jan17 revised Would it make sense to do a two-factor decomposition similar to singular-value decomposition? added 186 characters in body Jan17 revised Would it make sense to do a two-factor decomposition similar to singular-value decomposition? added 238 characters in body Jan17 answered Would it make sense to do a two-factor decomposition similar to singular-value decomposition? Jan15 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". Mar18 revised Example of functions that grow faster than the exponential functions and/or factorial functions? added 8 characters in body Mar17 answered Example of functions that grow faster than the exponential functions and/or factorial functions? Nov27 awarded Popular Question Apr30 awarded Yearling Jan18 awarded Teacher Jan11 accepted What are some general properties of $F(x, z) = \int f(x, y) f(y, z) dy$? Jan11 accepted In Bayesian network graphs, how to systematically search for conditional independent nodes? Jan9 answered How is $e^x$ read aloud?