# 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:
 semigroup-of-operators× 47 For questions related to theory of semigroups of linear operators and its applications to partial differential equations, stochastic processes such as Markov processes and other branches of mathematic… solid-angle× 46 fuzzy-logic× 46 a form of many-valued logic that deals with approximate, rather than fixed and exact reasoning. (Def: http://en.m.wikipedia.org/wiki/Fuzzy_logic) galois-representations× 45 classifying-spaces× 45 A classifying space $BG$ of a topological group $G$ is the quotient of a weakly contractible space $EG$ by a free action of $G$. When $G$ is a discrete group $BG$ has homotopy type of $K(G,1)$ and (co… prime-gaps× 45 The difference of two prime consecutive prime numbers is the prime gap. $g_i := p_{i+1} - p_i$. provability× 45 quiver× 44 an oriented graph which might contain multiple edges and loops. The terminology is used in representation-theory of finite dimensional algebras, where one considers functors from this grap… searching× 44 For questions about various search algorithms. stereographic-projections× 44 For question about stereographic projection, a particular mapping that projects a sphere onto a plane. toric-geometry× 44 local-field× 44 karush-kuhn-tucker× 44 constraint-programming× 44 a particular form of optimization modeling that tends to be well-suited for combinatorial models like scheduling and planning. euclidean-algorithm× 44 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… goldbachs-conjecture× 44 For questions about Goldbach's conjecture: every even integer greater than two is the sum of two primes. voting-theory× 44 For questions regarding the mathematical analysis of voting systems and behavior. Examples include the median voter theorem or the Condorcet jury theorems. function-fields× 43 chemistry× 43 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… linear-groups× 43 a group $G$ whose elements are invertible $n \times n$ matrices over a field $F$. quantum-computation× 43 quadratic-variation× 43 Questions on quadratic variations of stochastic processes. (Not to be confused with functions of bounded variation.) rngs× 42 an associative ring without necessarily having a multiplicative identity (rng = ring - $i$dentity). semi-riemannian-geometry× 42 Generalisation of (riemannian-geometry) where the metric is no longer required to be positive definite. The symmetry and non-degeneracy conditions are still kept. The particular case where the metric … inversive-geometry× 42 Questions related to Inversive Geometry and its applications. maxima-software× 42 For questions concerning the open source computational software program Maxima. etale-cohomology× 42 birational-geometry× 41 algebraic-k-theory× 41 a tool from homological algebra that defines a sequence of functors from rings to abelian groups. It has many applications in algebraic geometry. See also (topological-k-theory). moebius-transformation× 41 For questions about the geometry, complex-analytic, and group-theoretic properties of the Möbius transformations (linear fractional transformations) $z \mapsto \frac{az + b}{cz + d}$ of the complex pl… percentile× 41 A value representing the lowest $n$ percent of the values in a data set or of the possible values of a random variable. transformational-geometry× 41 In mathematics, transformation geometry (or transformational geometry) is the name of a mathematical and pedagogic approach to the study of geometry by focusing on groups of geometric transformations,… symplectic-linear-algebra× 41 Questions about vector spaces equipped with a symplectic form, a non-degenerate, skew-symmetric bilinear form. subgradient× 41 quasicoherent-sheaves× 41 perfect-numbers× 40 Questions about or involving perfect numbers which are positive integers that are equal to the sum of their proper positive divisors.