# 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:
 injective-module× 11 injective if $\hom_{R}({-},I)$ is exact. The notion of injective modules is dual to the notion of a projective module. In homological algebra injective modules are used… karush-kuhn-tucker× 11 cubic-equations× 11 continuous-homomorphisms× 11 To be used with questions about continuous homomorphisms into a space carrying both a topological and an algebraic structure. amenability× 11 chaotic-systems× 11 cohomological-operations× 11 ceiling-function× 11 The function that maps a real number x to the smallest integer not less than x. (See also (floor-function).) central-limit-theorem× 10 data-mining× 10 euler-maclaurin× 10 magic-square× 10 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… schwartz-space× 10 For question about the Schwartz space, a vector space of smooth functions stable under the Fourier transform. real-algebraic-geometry× 10 proof-without-words× 10 z-transform× 10 a discrete analogue to the Laplace transform, in that it maps a time domain signal into a representation in complex frequency plane. transfer-theory× 10 surgery-theory× 9 Surgery refers to cutting out parts of the manifold and replacing it with a part of another manifold, matching up along the cut or boundary. This is closely related to, but not identical with, handl… quantifier-elimination× 9 naive-bayes× 9 pochhammer-symbol× 9 the notation used for rising factorial and falling factorial: $(x)^n=x(x+1)\dots(x+n-1)$ and $(x)_n=x(x-1)\dots(x-n+1)$. linear-approximation× 9 lft× 9 l.f.t. = linear fractional transformation large-deviation-theory× 9 gambling× 9 hardy-spaces× 9 For questions about Hardy spaces. Use the other related tag like (tag: complex-analysis) or (operator-theory). fresnel-integrals× 9 Questions on the Fresnel integrals. functional-calculus× 9 Functional calculus allows the evaluation of a function applied to a linear operator or a matrix. The function could be a polynomial, a holomorphic function, a continuous function or a measurable func… galois-rings× 9 a class of finite commutative rings generalizing both the finite fields and the integer residue rings modulo a prime power in a quite natural way. Their name stems from the fact that … fair-division× 9 For various problems related to dividing a resource among several parties. cryptarithm× 9 coupon-collector× 9 A famous problem of probability, where a person samples a set with replacement until every element of the set (I.e. the coupons) has been obtained at least once. Questions deal with the associated pro… combinatory-logic× 9 Combinatory logic, combinatorial calculi, and other questions about combinators and variable-free variants of the $\lambda$-calculus. binary-operations× 8 art× 8 finitely-generated× 8