6 resultados para implicit function theorem
em Bulgarian Digital Mathematics Library at IMI-BAS
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2000 Mathematics Subject Classification: 54H25, 47H10.
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Mathematics Subject Classification: 44A05, 46F12, 28A78
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Mathematics Subject Classification 2010: 26A33, 33E12.
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We prove that if f is a real valued lower semicontinuous function on a Banach space X and if there exists a C^1, real valued Lipschitz continuous function on X with bounded support and which is not identically equal to zero, then f is Lipschitz continuous of constant K provided all lower subgradients of f are bounded by K. As an application, we give a regularity result of viscosity supersolutions (or subsolutions) of Hamilton-Jacobi equations in infinite dimensions which satisfy a coercive condition. This last result slightly improves some earlier work by G. Barles and H. Ishii.
Deformation Lemma, Ljusternik-Schnirellmann Theory and Mountain Pass Theorem on C1-Finsler Manifolds
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∗Partially supported by Grant MM409/94 Of the Ministy of Science and Education, Bulgaria. ∗∗Partially supported by Grant MM442/94 of the Ministy of Science and Education, Bulgaria.
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2000 Mathematics Subject Classification: 41A25, 41A36.