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Vladikavkaz Mathematical Journal
Article . 2018 . Peer-reviewed
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zbMATH Open
Article . 2018
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On One Family of Functional Equations

Об одном семействе функциональных уравнений
Authors: Kyrov, V. A.;

On One Family of Functional Equations

Abstract

$(n+1)$-мерная геометрия локальной максимальной подвижности задается некоторой невырожденной и дифференцируемой функцией пары точек $f$ на многообразии $M$, являющейся инвариантом группы движений размерности $(n+1)(n+2)/2$. Полной классификации таких геометрий размерности $n+1$ пока нет, но хорошо известны отдельные примеры: гоеметрия евклида, симплектическая геометрия, геометрии постоянной кривизны. В последнее время методом вложения были найдены некоторые ранее неизвествые геометрии локальной максимальной подвижности. Метод вложения дает возможность нахождения функций $f$, задающих $(n+1)$-мерные геометрии локальной максимальной подвижности, по функциям $\theta$ известных $n$-мерных геометрией локальной максимальной подвижности. Эта задача сводится к решению функциональных уравнений специального вида, являющихся следствием инвариантности функции пары точек $f$ относительно группы движений. Такие уравнения решаются в данной работе. Дифференцированием они сводятся сначала к функционально-дифференциальным уравнениям, от которых разделением переменных переходим к дифференциальным уравнениям. Затем решения последних уравнений подставляем в исходные функциональные уравнения, после чего получаем окончательный результат.

Keywords

differential equation, Classical differential geometry, Functional inequalities, including subadditivity, convexity, etc., functional equation, functional-differential equation

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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