Results 41 to 50 of about 937,852 (212)
Algorithms, 2019 This paper deals with an approximation of a first derivative of a signal using a dynamic system of the first order. After formulating the problem, a proposition and a theorem are proven for a possible approximation structure, which consists of a dynamic ...
Manuel Schimmack, Paolo Mercorelli
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Matrix interpretation of multiple orthogonality [PDF]
, 2010 In this work we give an interpretation of a (s(d + 1) + 1)-term recurrence relation in terms of type II multiple orthogonal polynomials.We rewrite this recurrence relation in matrix form and we obtain a three-term recurrence relation for vector ...
Branquinho, Amílcar +2 more
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The Malgrange-Ehrenpreis Theorem [PDF]
, 2012 This paper collect of some proofs of the Malgrange-Ehrenpreis Theorem, which asserts the existence of fundamental solutions of linear partial differential operator with constant coefficients.Ribera Puchades, JM. (2011).
Ribera Puchades, Juan Miguel
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An equioscillation theorem for multivariate Chebyshev approximation [PDF]
, 2023 The equioscillation theorem interleaves the Haar condition, the existence and uniqueness and strong uniqueness of the optimal Chebyshev approximation and its characterization by the equioscillation condition in a way that cannot extend to multivariate ...
Goldsztejn, Alexandre
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Approximation of 2π-periodic functions by Taylor—Abel—Poisson operators in the integral metric
Доповiдi Нацiональної академiї наук УкраїниWe obtain direct and inverse approximation theorems of 2π-periodic functions by Taylor — Abel — Poisson operators in the integral metric.
J. Prestin, V.V. Savchuk, A.L. Shidlich
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Generalization of Prolla's Theorem in Approximation
مجلة بغداد للعلومThe principal factor in the proofs of many so-called intersection results and associated best approximation theorems—such as the famed Brouwer fixed-point theorem) is Knaster-Kuratowski-Mazurkiewicz theorem (KKM), which was extended from Rl to Hausdorff ...
Nadia M. J. Ibrahem +2 more
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Approximate fixed point theorems [PDF]
Scientific Annals of the A.I.I. Cuza University, 2001 The authors discuss weakenings of the conditions in the fixed point theorems of Brouwer, Kakutani and Banach which still guarantee the existence of approximate fixed points.
TORRE, ANNA, Tijs S., Brânzei R.
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An Approximation Theorem for Extended Prime Spots
, 1972 We introduce here a generalization to arbitrary fields of the prime spots of algebraic number theory, essentially by allowing absolute values to take the value ∞.
Ron Brown
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ERGODIC THEOREMS AND APPROXIMATION THEOREMS WITH RATES
Taiwanese Journal of Mathematics, 2000 The paper devoted to the study of some strong ergodic theorems, uniform ergodic theorems and ergodic theorems with rates. It is diveded into five sections. The first section is an introduction. In the second section it is given a review of some results in connections with \(A\)-ergodic nets, which were firstly introduced in [\textit{S.-Y.
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An Approximation Theorem for Vector Equilibrium Problems under Bounded Rationality
Mathematics, 2020 In this paper, our purpose is to investigate the vector equilibrium problem of whether the approximate solution representing bounded rationality can converge to the exact solution representing complete rationality.
Wensheng Jia, Xiaoling Qiu, Dingtao Peng
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