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Non-existence of extremals for the Adimurthi-Druet inequality - MaRDI portal

Non-existence of extremals for the Adimurthi-Druet inequality (Q1627692)

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Non-existence of extremals for the Adimurthi-Druet inequality
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    Non-existence of extremals for the Adimurthi-Druet inequality (English)
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    3 December 2018
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    The main result of the paper establishes the non-existence of extremal functions for the Adimurthi-Druet inequality in the plane when the parameter approaches the first eigenvalue of the Laplacian operator. This contrasts with the existence of extremals for the standard Moser-Trudinger inequality.
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    Moser-Trudinger inequality
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    Adimurthi-Druet inequality
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    extremal functions
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    Dirichlet energy
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