Abelian groups with left comorphic endomorphism ringsA ring
R is called left comorphic if for every a ∈
R there exists b ∈
R such that the left
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О двух определениях степени функции над ассоциативным коммутативным кольцомПусть
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R, где m ф 0. Обозначим через degn р
Interaction between two point-like charges in nonlinear electrostatics of the two charges in a dipole-like approximation, where the separation between them
R is much smaller than
On the Wiener (r,s)-complexity of fullerene graphsFullerene graphs are mathematical models of fullerene molecules. The Wiener (
r,s)-complexity of a
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