# 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:
 calendar-computations× 53 for questions about combinatorial and computational issues with regards to calendar systems. A typical, well-known mathematical result in this direction is John Conway's Doomsday Algorithm… direct-product× 53 magma× 53 a set together with a binary operation on this set. (For questions about the computer algebra system named Magma, use the [magma-cas] tag instead.) k-theory× 53 the study of invariants of large matrices, in a suitable sense. It has many variations: (algebraic-k-theory), (topological-k-theory), or in the study of (operator-algebras). metric-geometry× 53 The study of geometry of manifolds without appealing to differential calculus. It includes studies of length spaces, Alexandrov spaces, and CAT(k) spaces. The techniques are often applicable to Rieman… symplectic-linear-algebra× 53 Questions about vector spaces equipped with a symplectic form, a non-degenerate, skew-symmetric bilinear form. quadratic-variation× 53 Questions on quadratic variations of stochastic processes. (Not to be confused with functions of bounded variation.) power-towers× 52 For questions pertaining to power towers: expressions like a^(b^(c^d))), which result from iterated exponentiation. The "hyperoperation" tag may be appropriate, too. product-space× 52 For questions about the structure of product space, in the context of topology or measure theory for example. Use other tags to indicate the context. magma-cas× 52 a computer algebra system distributed by the University of Sydney, and designed for solving problems in algebra, number theory, geometry and combinatorics. cayley-graphs× 52 graphs obtained from a group $G$ in a such way that vertices are elements of the group and edges are added using some generating set $S\subseteq G$. deformation-theory× 52 The study of how mathematical objects (complex manifolds, associative algebras, Lie algebras) can be deformed into similar mathematical objects, at least infinitesimally. collision-detection× 52 taylor-series× 52 popular-math× 51 Question on bits and pieces of mathematics that show up in popular media (TV, movies, comics, etc.) positive-characteristic× 51 For questions involving rings of positive characteristic, particularly those questions whose statements and hypotheses heavily rely on positive characteristic. Consider using the ring-theory tag for … quantum-computation× 51 linear-groups× 50 a group $G$ whose elements are invertible $n \times n$ matrices over a field $F$. indeterminate-forms× 50 If the expression obtained after any substitution during limit analysis does not give enough information to determine the original limit, it is known as an indeterminate form. arithmetic-progressions× 49 Questions related to arithmetic progressions (sequences with a constant difference between the terms) monomial-ideals× 49 provability× 49 subgradient× 49 searching× 48 For questions about various search algorithms. perfect-numbers× 48 Questions about or involving perfect numbers which are positive integers that are equal to the sum of their proper positive divisors. maxima-software× 48 For questions concerning the open source computational software program Maxima. coalgebras× 48 chemistry× 48 Questions related to mathematical chemistry which include application of mathematics to problems in chemistry and the development of mathematical methods suitable for such applications and for the for… etale-cohomology× 48 finite-automata× 48 constraint-programming× 47 a particular form of optimization modeling that tends to be well-suited for combinatorial models like scheduling and planning. magic-square× 47 an arrangement of $n^2$ numbers, usually distinct integers, in a square, such that the n numbers in all rows, all columns, and both diagonals sum to the same constant. ht… percentile× 47 A value representing the lowest $n$ percent of the values in a data set or of the possible values of a random variable. solid-angle× 47 stereographic-projections× 47 For question about stereographic projection, a particular mapping that projects a sphere onto a plane. quasicoherent-sheaves× 46