Results 141 to 150 of about 15,000 (228)

Idempotent ordered semigroup

open access: yes, 2017
An element e of an ordered semigroup $(S,\cdot,\leq)$ is called an ordered idempotent if $e\leq e^2$. We call an ordered semigroup $S$ idempotent ordered semigroup if every element of $S$ is an ordered idempotent. Every idempotent semigroup is a complete semilattice of rectangular idempotent semigroups and in this way we arrive to many other important ...
openaire   +2 more sources

Sombor topological indices for different nanostructures. [PDF]

open access: yesHeliyon, 2023
Imran M   +4 more
europepmc   +1 more source

Home - About - Disclaimer - Privacy