Results 151 to 160 of about 17,862 (236)

Adventures in applying iteration lemmas

open access: yes, 2013
The word problem of a finitely generated group is commonly defined to be a formal language over a finite generating set. The class of finite groups has been characterised as the class of finitely generated groups that have word problem decidable by a
Pfeiffer, Markus Johannes
core  

Fuzzy bipolar soft semiprime ideals in ordered semigroups. [PDF]

open access: yesHeliyon, 2021
Aziz-Ul-Hakim, Khan H, Ahmad I, Khan A.
europepmc   +1 more source

Several locality semigroups, path semigroups and partial semigroups

open access: yes, 2018
Locality semigroups were proposed recently as one of the basic locality algebraic structures, which are studied in mathematics and physics. Path semigroups and partial semigroups were also developed by many authors in the literature. In this paper, we study free objects in the category of refined locality semigroups. It turns out that the path locality
openaire   +3 more sources

The semigroup of semigroup extensions

open access: yesSemigroup Forum, 1971
Stepp, J.W., Fulp, R.O.
openaire   +2 more sources

Ramifications of generalized Feller theory. [PDF]

open access: yesJ Evol Equ
Cuchiero C, Möllmann T, Teichmann J.
europepmc   +1 more source

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