30 resultados para Semigroups of Operators
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2000 Mathematics Subject Classification: Primary 30C45, Secondary 26A33, 30C80
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2000 Mathematics Subject Classification: 44A35; 42A75; 47A16, 47L10, 47L80
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2000 Mathematics Subject Classification: 35E45
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2000 Math. Subject Classification: 30C45
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2000 Mathematics Subject Classification: 26A33, 33C60, 44A20
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Toric coordinates and toric vector field have been introduced in [2]. Let A be an arbitrary vector field. We obtain formulae for the divA, rotA and the Laplace operator in toric coordinates.
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MSC 2010: 30C45, 30C50
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2000 Mathematics Subject Classification: Primary 47A48, Secondary 60G12
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2000 Mathematics Subject Classification: Primary 46E15, 54C55; Secondary 28B20.
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In this survey article we discuss some recent results concerning strong spectral estimates for Ruelle transfer operators for contact flows on basic sets similar to these of Dolgopyat obtained in the case of Anosov flows with C1 stable and unstable foliations. Some applications of Dolgopyat's results and the more recent ones are also described.
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2000 Mathematics Subject Classification: 35P20, 35J10, 35Q40.
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2000 Mathematics Subject Classification: Primary 47A20, 47A45; Secondary 47A48.
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AMS classification: 41A36, 41A10, 41A25, 41Al7.
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AMS Subject Classification 2010: 41A25, 41A27, 41A35, 41A36, 41A40, 42Al6, 42A85.