Results 21 to 30 of about 1,568,578 (301)
Friedrichs extension of singular symmetric differential operators
Electronic Journal of Differential Equations, 2023 For singular even order symmetric differential operators we find the matrices which determine all symmetric extensions of the minimal operator. And for each of these symmetric operators which is bounded below we find the boundary condition of its ...
Qinglan Bao, Guangsheng Wei, Anton Zettl
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Orthogonally Biadditive Operators
Journal of Function Spaces, 2021 In this article, we introduce and study a new class of operators defined on a Cartesian product of ideal spaces of measurable functions. We use the general approach of the theory of vector lattices.
Nonna Dzhusoeva +2 more
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Interpolated scales of approximation spaces for regular elliptic operators on compact manifolds
Karpatsʹkì Matematičnì Publìkacìï, 2014 We define the interpolated scales of approximation spaces, generated by regular elliptic operators on compact manifolds. The appropriate Bernstein-Jackson inequalities and application to spectral approximations of regular elliptic operators are ...
M.I. Dmytryshyn
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Regular Expressions with Lookahead [PDF]
Journal of Universal Computer Science, 2021 This paper investigates regular expressions which in addition to the standard operators of union, concatenation, and Kleene star, have lookaheads. We show how to translate regular expressions with lookaheads (REwLA) to equivalent Boolean automata having ...
Martin Berglund +2 more
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A note on the relationship between three classes of operators on Riesz spaces
Annals of the West University of Timisoara: Mathematics and Computer Science, 2019 Following several papers in the prior literature, we study the relationship between order bounded operators, topologically bounded operators and topologically continuous operators.
Hong Liang
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Orthogonal projection regularization operators [PDF]
Numerical Algorithms, 2007 The authors propose Tikhonov regularization operators of the form \(L = I - W W^T\), with \(W^T W = I\) and easy to be computed. They successfully apply these constructions to iterative and singular value decomposition-based methods. Numerical examples are presented for first kind integral equations and image restoration problems.
MORIGI, SERENA +2 more
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Frontiers in Psychology, 2019 This study was designed to examine whether qualified practitioners’ cue utilization is predictive of their sustained attention performance during regular operational tasks.
Daniel Sturman +6 more
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Современная математика: Фундаментальные направления, 2021 A short review is presented of results on the spectral theory of arbitrary order ordinary differential operators with non-integrable regular singularities.
V. A. Yurko
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Band projections in spaces of regular operators [PDF]
, 2023 We introduce inner band projections in the space of regular operators on a Dedekind complete Banach lattice and study some structural properties of this class. In particular, we provide a new characterization of atomic order continuous Banach lattices as
Muñoz-Lahoz, D. +3 more
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Regular extension operators for partial fuzzy (pseudo)metrics [PDF]
Математичні Студії, 2011 Using the fuzzy modification of the Prokhorov metric on the set of probability measures we prove the theorem on existence of simultaneous extensions of partial fuzzy metrics (for the Lukasiewicz t-norm) defined on closed subsets of a compact metrizable ...
A. Savchenko
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