Решения дифференциального неравенства с нуль-лагранжианом: повышающаяся интегрируемость и устранимость особенностей. I

Автор: Егоров Александр Анатольевич

Журнал: Владикавказский математический журнал @vmj-ru

Статья в выпуске: 3 т.16, 2014 года.

Бесплатный доступ

Целью настоящей статьи является установление свойства самоулучшающейся интегрируемости производных решений дифференциального неравенства с нуль-лагранжианом. Более точно, мы доказываем, что решение класса Соболева с показателем суммирумости, немного меньшим естественно определенного структурными предположениями на нуль-лагранжиан показателя, фактически принадлежит пространству Соболева с показателем суммируемости, немного большим естественного показателя. Мы также применяем это свойство, чтобы улучшить теоремы о гельдеровой регулярности и об устойчивости из статьи [19].

Короткий адрес: https://sciup.org/14318466

IDR: 14318466   |   УДК: 517.957:517.548

Solutions of the differential inequality with a null lagrangian: higher integrability and removability of singularities. I

The aim of this paper is to derive the self-improving property of integrability for derivatives of solutions of the differential inequality with a Lagrangian. More precisely, we prove that the solution of the Sobolev class with some Sobolev exponent slightly smaller than the natural one determined by the structural assumption on the involved Lagrangian actually belongs to the Sobolev class with some Sobolev exponent slightly larger than this natural exponent. We also apply this property to improve H\"older regularity and stability theorems of [19].

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