Results 1 to 10 of about 2,281,033 (352)
Smooth, Compact Operators [PDF]
Proceedings of the American Mathematical Society, 1979 It is a result of Holub’s [Math. Ann. 201 (1973), 157-163], that for T a compact operator on a real Hilbert space, T is smooth ⇔ ‖ T x 1 ‖ = ‖ T
Julien Hennefeld
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Manuscripta Mathematica, 1975 I give an example of a positive compact operator on L2[0,1] which is not representable by any Lebesgue measurable function on [0,1]2. This example can be adapted to answer a question of H.H.Schaefer (§4 below).
D. Fremlin
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Small eigenvalues of the Laplace operator on compact Riemann surfaces [PDF]
, 1974 Let Sf be a compact Riemann surface, which we will assume to have curvature normalized to be — 1 , and let 0=A0 0) , and satisfying a growth condition of the form \h(z)\ = 0 ( l + |z|)~, uniformly in the strip. Associate with the sequence o(%)> hix)* ' '
Burton Randol
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Improvement by iteration for compact operator equations [PDF]
, 1976 Ian H. Sloan
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Spectral analysis of collectively compact, strongly convergent operator sequences [PDF]
, 1968 P. M. Anselone, Theodore W. Palmer
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Compact and limited operators [PDF]
Mathematische Nachrichten, 2021 AbstractLet be a bounded linear operator between two real normed spaces. We characterize compactness of T in terms of differentiability of the Lipschitz functions defined on X with values in another normed space Z. Furthermore, using a similar technique we can also characterize finite rank operators in terms of differentiability of a wider class of ...
Bachir, Mohammed +2 more
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Some Topological Character of Neutrosophic normed spaces [PDF]
Neutrosophic Sets and Systems, 2021 The concept of neutrosophic normed spaces was introduced by Murat Kirisci* and Necip Simsek [3]. In this paper, by using the compact operator ψ(zj ) and the concept of statistical convergence.
Vakeel A. Khan, Mohammad Daud Khan
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On the class of $\text{b}$-L-weakly and order M-weakly compact operators [PDF]
Mathematica Bohemica, 2020 In this paper, we introduce and study new concepts of b-L-weakly and order M-weakly compact operators. As consequences, we obtain some characterizations of KB-spaces.
Driss Lhaimer +2 more
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On linear sections of orthogonally additive operators
Математичні Студії, 2022 Our first result asserts that, for linear regular operators acting from a Riesz space with the principal projection property to a Banach lattice with an order continuous norm, the $C$-compactness is equivalent to the $AM$-compactness. Next we prove that,
A. Gumenchuk, I. Krasikova, M. Popov
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Weakly compact operators on operator algebras [PDF]
Pacific Journal of Mathematics, 1964 S. Sakai
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