Multipliers in weighted Sobolev spaces on the axis


Осьтегi салмақты Соболев кеңiстiктерiндегi мультипликаторлар
Мультипликаторы в весовых пространствах Соболева на оси
Myrzagaliyeva A.
2022E.A. Buketov Karaganda University Publish house

Bulletin of the Karaganda University. Mathematics Series
2022#107Issue 3105 - 115 pp.

This work establishes necessary and sufficient conditions for the boundedness of one variable differential operator acting from a weighted Sobolev space Wp, vl to a weighted Lebesgue space on the positive real half line. The coefficients of differential operators are often assumed to be pointwise multipliers of function spaces. The author introduces pointwise multipliers in weighted Sobolev spaces; obtains the description of the space of multipliers M(W1 → W2) for a pair of weighted Sobolev spaces (W1, W2) with weights of general type.

admissible function , differential operator , Otelbaev function , pointwise multiplier , slow variation condition , Sobolev space , weighted space

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Astana IT University, Nur-Sultan, Kazakhstan

Astana IT University

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