List questions from magma | MathQA

How to show that a compact semigroup for which the cancellation law holds is a compact group

Published on 23 Feb 2026 - 21:17

Is there a magma with this property?

Published on 23 Feb 2026 - 21:13

Is there a concept representing "connectedness" in abstract algebra?

Published on 23 Feb 2026 - 21:13

Program to calculate homology of a Koszul complex involving univariate polynomials

Published on 23 Feb 2026 - 21:16

non-commutative algebraic structure with 16 elements, need help categorizing it and finding a representation

Published on 23 Feb 2026 - 21:11

Is class number the always the degree of [Hilbert class field of discriminant $D:K=\mathbb{Q}(\sqrt{d})]$

Published on 23 Feb 2026 - 21:19

An example of a binary operation which is neither idempotent nor has a right identity, but has a reflexive "left-divisor" relation.

Published on 23 Feb 2026 - 21:16

An equational basis for the variety generated by the following class of magmas.

Published on 23 Feb 2026 - 21:18

intersection of point stabilisers is trivial

Published on 09 Apr 2026 - 12:00

Which axiom can almost determine the magma with one element?

Published on 23 Feb 2026 - 21:14