semigroup

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sem·i·group

 (sĕm′ē-gro͞op′, sĕm′ī-)
n. Mathematics
A set for which there is a binary operation that is closed and associative.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

semigroup

(ˈsɛmɪˌɡruːp)
n
a set together with an associative binary operation
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
Translations
semigruppo
References in periodicals archive ?
Regular ordered semigroups are known to be the most important classes of semigroup theory. In this section, fuzzy quasi-ideals of type ([member of], [member of] V[q.sup.[delta].sub.k]) are introduced.
We first construct the local solutions by the semigroup theory to linearized equations for a small time.
It is a basic fact of semigroup theory that every subgroup of a semigroup S lies in a unique maximal subgroup.
The authors proved that the system is exponentially stable by using the [C.sub.0] semigroup theory under the following feedback control law
Due to the fact that the Fourier transform of [(30).sub.1]-[(30).sub.2] has multiple eigenvalue and the semigroup theory, to investigate spectral structure of [(30).sub.1]-[(30).sub.2], we need to analyze the corresponding Jordan structure.
Rhodes, "Group theory via global semigroup theory", J.
Despite all this, we still overcome the above bottlenecks in the process of estimation and proof by applying semigroup theory and decomposition technology.
Khali, "Conformable fractional semigroup operators," Journal of Semigroup Theory and Applications, vol.
Syntactic and global semigroup theory, a synthesis approach.
Ahmed,(1991), Semigroup Theory with Applications to Systema and Control, Pitman Research Notes in Mathematics Series, Vol.