Some functional inequalities in variable exponent spaces with a more generalization of uniform continuity condition
Publish Year: 1395
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_IJNAA-7-2_002
تاریخ نمایه سازی: 11 آذر 1401
Abstract:
Some functional inequalities in variable exponent Lebesgue spaces are presented. The bi-weighted modular inequality with variable exponent p(.) for the Hardy operator restricted to non- increasing function which isint_۰^infty (frac{۱}{x}int_۰^x f(t)dt)^{p(x)}v(x)dxleqCint_۰^infty f(x)^{p(x)}u(x)dx, is studied. We show that the exponent p(.) for which these modular inequalities hold must have constant oscillation. Also we study the boundedness of integral operator Tf(x)=int K(x,y) f(x)dy on L^{p(.)} when the variable exponent p(.) satisfies some uniform continuity condition that is named beta-controller condition and so multiple interesting results which can be seen as a generalization of the same classical results in the constant exponent case, derived.
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Assistant professor of Iran University of Science and technology