# Tags

A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

 Type to find tags:
 non-noetherian created 4 hours ago bivectors created Apr 22 at 0:32 stability-theory× 3 created Apr 17 at 13:10 topological-stacks created Apr 15 at 9:24 rationalising-denominator× 3 For questions on rationalising the denominator, the operation of rewriting a fraction in such a way that the denominator is free of square roots, cube roots, etc. The fraction can be a real number inv… created Apr 12 at 14:24 arithmetic-progressions× 4 created Apr 12 at 11:48 multiplicative-order× 3 created Apr 12 at 11:14 continuous-geometry created Apr 11 at 10:25 greatest-common-divisor× 12 The greatest common divisor of two or more integers is the largest integer that divides all of them (if it exists). created Apr 9 at 12:17 legendre-symbol× 6 created Apr 9 at 7:58 rationality-testing× 34 For questions on determining whether a number is rational, and related problems. If applicable, use this tag instead of (rational-numbers) and (irrational-numbers). Consider adding a tag (radicals) or… created Apr 9 at 7:11 permutation-groups created Apr 9 at 4:29 hilbert-polynomial created Apr 4 at 8:26 infinite-descent× 6 Infinite descent, also named Fermat's descent, is a technique to prove that a diophantine equation has no solutions by construction a 'smaller' solution from a given one. created Apr 3 at 11:29 quasigroups× 9 a grouplike structure $(Q, \ast)$, that satisfies the Latin square property but need not have an identity element, nor need it be associative. It coincides with the notion of a divisib… created Apr 2 at 6:31 linear-diophantine-eqns× 11 Questions about linear diophantine equations. created Mar 26 at 22:52 euclidean-algorithm× 31 For questions about the uses of the Euclidean algorithm, Extended Euclidean algorithm, and related algorithms in integers, polynomials, or general Euclidean domains. This is **not** about Euclidean ge… created Mar 25 at 17:29 cluster-algebra created Mar 24 at 10:33 quadratic-variation× 43 Questions on quadratic variations of stochastic processes. (Not to be confused with functions of bounded variation.) created Mar 23 at 15:44 congruence-relations× 8 For questions about congruence relations, equivalence relations on an algebraic structure that are compatible with the structure. created Mar 22 at 12:48 matrix-congruences× 3 For questions about congruent matrices. created Mar 22 at 12:47 polynomial-congruences× 4 Questions about congruences where the modulus is a polynomial. For questions concerning congruences between polynomials where the modulus is an integer, use the tag (modular-arithmetic) instead. created Mar 22 at 11:55 congruences-geometry× 10 For questions about congruent geometric figures, e.g., determining whether one figure is congruent to another. created Mar 22 at 10:57 semi-simple-rings× 3 created Mar 21 at 5:59 greens-theorem× 15 created Mar 20 at 21:58 dissection created Mar 19 at 15:55 lagrange-interpolation× 10 created Mar 18 at 12:09 mellin-transform created Mar 17 at 10:12 liouville-function× 2 created Mar 14 at 13:44