50 resultados para semigroups of bounded linear operators
em Bulgarian Digital Mathematics Library at IMI-BAS
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2000 Mathematics Subject Classification: Primary 47A20, 47A45; Secondary 47A48.
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2000 Mathematics Subject Classification: Primary 47B47, 47B10; Secondary 47A30.
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The paper has been presented at the 12th International Conference on Applications of Computer Algebra, Varna, Bulgaria, June, 2006
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We give the necessary and sufficient conditions for the extendability of ternary linear codes of dimension k ≥ 5 with minimum distance d ≡ 1 or 2 (mod 3) from a geometrical point of view.
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We study the continuity of pseudo-differential operators on Bessel potential spaces Hs|p (Rn ), and on the corresponding Besov spaces B^(s,q)p (R ^n). The modulus of continuity ω we use is assumed to satisfy j≥0, ∑ [ω(2−j )Ω(2j )]2 < ∞ where Ω is a suitable positive function.
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Mathematics Subject Classification: 26A33, 33E12, 33C20.
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2000 Mathematics Subject Classification: 44A35; 42A75; 47A16, 47L10, 47L80
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2000 Math. Subject Classification: 30C45
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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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Dedicated to the memory of S.M. Dodunekov (1945–2012)Abstract. Geometric puncturing is a method to construct new codes. ACM Computing Classification System (1998): E.4.
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AMS subject classification: 90C05, 90A14.
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2000 Mathematics Subject Classification: 60G18, 60E07
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2000 Mathematics Subject Classification: 45F15, 45G10, 46B38.
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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.