An improved Hardy-Sobolev inequality and its application |
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Authors: | Adimurthi Nirmalendu Chaudhuri Mythily Ramaswamy |
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Institution: | School of Mathematics, Tata Institute of Fundamental Research, Bangalore centre, IISc Campus, Bangalore-560012, India ; Department of Mathematics, Indian Institute of Science, Bangalore-560012, India ; School of Mathematics, Tata Institute of Fundamental Research, Bangalore centre, IISc Campus, Bangalore-560012, India |
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Abstract: | For , a bounded domain, and for , we improve the Hardy-Sobolev inequality by adding a term with a singular weight of the type . We show that this weight function is optimal in the sense that the inequality fails for any other weight function more singular than this one. Moreover, we show that a series of finite terms can be added to improve the Hardy-Sobolev inequality, which answers a question of Brezis-Vazquez. Finally, we use this result to analyze the behaviour of the first eigenvalue of the operator as increases to for . |
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Keywords: | Hardy-Sobolev inequality eigenvalue p-laplacian |
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