54 resultados para THEOREMS
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2000 Mathematics Subject Classification: 62H15, 62P10.
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The deviations of some entire functions of exponential type from real-valued functions and their derivatives are estimated. As approximation metrics we use the Lp-norms and power variations on R. Theorems presented here correspond to the Ganelius and Popov results concerning the one-sided trigonometric approximation of periodic functions (see [4, 5 and 8]). Some related facts were announced in [2, 3, 6 and 7].
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2010 Mathematics Subject Classification: 60J80.
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2000 Mathematics Subject Classification: 65G99, 65K10, 47H04.
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In this paper, we give several results for majorized matrices by using continuous convex function and Green function. We obtain mean value theorems for majorized matrices and also give corresponding Cauchy means, as well as prove that these means are monotonic. We prove positive semi-definiteness of matrices generated by differences deduced from majorized matrices which implies exponential convexity and log-convexity of these differences and also obtain Lypunov's and Dresher's type inequalities for these differences.
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2000 Mathematics Subject Classification: Primary 60G51, secondary 60G70, 60F17.
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MSC 2010: 33C20
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2000 Mathematics Subject Classification: 41A25, 41A36, 40G15.
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2000 Mathematics Subject Classification: 30C45