P-Stable Polygons


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Abstract

P-stable polygons are studied. It is proved that the property of being (P, s)-, (P, a)-, and (P, e)-stable for the class of all polygons over a monoid S is equivalent to S being a group. We describe the structure of (P, s)-, (P, a)-, and (P, e)-stable polygons SA over a countable left zero monoid S and, under the condition that the set A \ SA is indiscernible, over a right zero monoid.

About the authors

A. A. Stepanova

School of Natural Sciences, Far Eastern Federal University; Institute of Applied Mathematics

Author for correspondence.
Email: stepltd@mail.ru
Russian Federation, ul. Sukhanova 8, Vladivostok, 690091; ul. Radio 7, Vladivostok, 690041

D. O. Ptakhov

School of Natural Sciences, Far Eastern Federal University

Email: stepltd@mail.ru
Russian Federation, ul. Sukhanova 8, Vladivostok, 690091

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