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Results tagged with ra.rings-and-algebras
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user 136
Non-commutative rings and algebras, non-associative algebras, universal algebra and lattice theory, linear algebra, semigroups. For questions specific to commutative algebra (that is, rings that are assumed both associative and commutative), rather use the tag ac.commutative-algebra.
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Familiar equations in more general settings
The equation for the variance of a sum of correlated random variables looks like the law of cosines. More on that here. Both the variance formula and the law of cosines are consequences of general pro …
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Canonical examples of algebraic structures
Please list some examples of common examples of algebraic structures. I was thinking answers of the following form.
"When I read about a [insert structure here], I immediately think of [example]."
O …