idempotent
21Inverse semigroup — In mathematics, an inverse semigroup S is a semigroup in which every element x in S has a unique inverse y in S in the sense that x = xyx and y = yxy. Inverse semigroups appear in a range of contexts; for example, they can be employed in the… …
22Outline of algebraic structures — In universal algebra, a branch of pure mathematics, an algebraic structure is a variety or quasivariety. Abstract algebra is primarily the study of algebraic structures and their properties. Some axiomatic formal systems that are neither… …
23Semiring — In abstract algebra, a semiring is an algebraic structure similar to a ring, but without the requirement that each element must have an additive inverse. The term rig is also used occasionally this originated as a joke, suggesting that rigs are… …
24List of algebraic structures — In universal algebra, a branch of pure mathematics, an algebraic structure is a variety or quasivariety. Abstract algebra is primarily the study of algebraic structures and their properties. Some axiomatic formal systems that are neither… …
25Regular semigroup — A regular semigroup is a semigroup S in which every element is regular, i.e., for each element a , there exists an element x such that axa = a . [Howie 1995 : 54.] Regular semigroups are one of the most studied classes of semigroups, and their… …
26Hypertext Transfer Protocol — HTTP Persistence · Compression · HTTPS Request methods OPTIONS · GET · HEAD · POST · PUT · DELETE · TRACE · CONNECT Header fields Cookie · ETag · Location · Referer DNT · …
27Semigroup — This article is about the algebraic structure. For applications to differential equations, see C0 semigroup. In mathematics, a semigroup is an algebraic structure consisting of a set together with an associative binary operation. A semigroup… …
28Idempotenzgesetz — Idempotenz ist ein Begriff aus der Mathematik und Informatik. Er bezeichnet die Eigenschaft einer Funktion, in Verknüpfung mit sich selbst das gleiche Ergebnis zu liefern wie bei einmaliger Verwendung. Die beiden grundlegenden und wichtigsten… …
29Idempotence — En mathématiques et en informatique, le concept d’idempotence signifie essentiellement qu une opération a le même effet qu on l applique une ou plusieurs fois, ou encore qu en la réappliquant on ne modifiera pas le résultat. On la retrouve en… …
30Loi De Composition Interne — L’algèbre est la branche des mathématiques qui s’intéresse aux ensembles et aux relations qui peuvent y être établies. Elle recherche les conséquences générales qui découlent des propriétés de ces relations, indépendamment de la nature précise… …
