Results 11 to 20 of about 5,128,390 (250)
Stability of Set Differential Equations in Fréchet Spaces
Advances in Mathematical Physics, 2023 In this paper, we investigate the stability of set differential equations in Fréchet space F. Some comparison principles and stability criteria are established for set differential equations with the fact that every Fréchet space F is a projective limit ...
Junyan Bao, Wei Chen, Peiguang Wang
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Axioms, 2022 The class of measure spaces which can be represented as unions of Lebesgue-Rohlin spaces with continuous measures contains a lot of important examples, such as Rn for any n∈N with the Lebesgue measure.
Taras Vasylyshyn, Kostiantyn Zhyhallo
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Criteria in Nuclear Fréchet Spaces and Silva Spaces with Refinement of the Cannon-Whittaker Theory
, 2020 Along with the theory of bases in function spaces, the existence of a basis is not always guaranteed. The class of power series spaces contains many classical function spaces, and it is of interest to look for a criterion for this class to ensure the ...
M. Abul-Ez, M. Zayed
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Surjectivity in Fréchet Spaces [PDF]
Journal of Optimization Theory and Applications, 2018 We prove surjectivity result in Fréchet spaces of Nash–Moser type, that is, with uniform estimates over all seminorms. Our method works for functions, which are only continuous and strongly Gâteaux differentiable.
M. Ivanov, N. Zlateva
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Characterization of Frechet spaces with nuclear Kothe quotients
Bibechana, 2014 In this paper our result based on the characterization of Frechet spaces with nuclear Kothe quotients is in terms of the following condition which labeled as ?. We show that a Frechet spaces E satisfies condition ? if and only if it has a quotient which
Satya Narayan Sah
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Computing the Similarity Between Moving Curves [PDF]
, 2015 In this paper we study similarity measures for moving curves which can, for example, model changing coastlines or retreating glacier termini. Points on a moving curve have two parameters, namely the position along the curve as well as time.
A. Driemel +10 more
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International Journal of Mathematics and Mathematical Sciences, 1999 First, we introduce sequential convergence structures and characterize Fréchet spaces and continuous functions in Fréchet spaces using these structures.
Woo Chorl Hong
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Strong Fréchet properties of spaces constructed from squares and AD families
Applied General Topology, 2023 We answer questions of Arhangel'skiĭ using spaces defined from combinatorial objects. We first establish further convergence properties of a space constructed from □ ( κ ) showing it is Fréchet-Urysohn for finite sets and a w-space that is not a W-space.
William Chen-Mertens +2 more
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Global existence and controllability to a stochastic integro-differential equation
Electronic Journal of Qualitative Theory of Differential Equations, 2010 In this paper, we are focused upon the global uniqueness results for a stochastic integro-differential equation in Fréchet spaces. The main results are proved by using the resolvent operators combined with a nonlinear alternative of Leray-Schauder type ...
Yong-Kui Chang, Zhi-Han Zhao, Juan Nieto
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Bernstein's Lethargy Theorem in Fréchet spaces [PDF]
Journal of Approximation Theory, 2015 In this paper we consider Bernstein's Lethargy Theorem (BLT) in the context of Frechet spaces. Let X be an infinite-dimensional Frechet space and let V = { V n } be a nested sequence of subspaces of X such that V n ź ź V n + 1 for any n ź N .
A. Aksoy, G. Lewicki
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