Results 21 to 30 of about 56 (50)
International Journal of Mathematics and Mathematical Sciences, Volume 2025, Issue 1, 2025.For the Weinstein Laplacian considered on the Hilbert space which makes it a self‐adjoint operator, the Von Neumann spectral decomposition is given. As applications, a new integral representation for the Weinstein heat kernel is given. Also, it is proved that the spectrum of the semigroup associated with the Weinstein Laplacian is reduced to its ...
Abdelilah El Mourni +3 more
wiley +1 more source
Generalized Derivations and Norm Equality in Normed Ideals [PDF]
, 2011 2000 Mathematics Subject Classification: 47A10, 47A12, 47A30, 47B10, 47B20, 47B37, 47B47, 47D50.We compare the norm of a generalized derivation on a Hilbert space with the norm of its restrictions to Schatten norm ...
Barraa, Mohamed
core
Cohyponormality of Unbounded Product of Composition Operators in L2 Spaces
Journal of Function Spaces, Volume 2025, Issue 1, 2025.Let X,A,μ be a σ‐finite measure space. The composition operators Cϕ:DCϕ⟶L2μ are defined by Cϕf=f∘ϕ,f∈DCϕ, where ϕ are nonsingular transformations and DCϕ=f∈L2μ: f∘ϕ∈L2μ. Suppose that ϕ1, ϕ2, ⋯, ϕn are nonsingular transformations of X, where n ∈ ℕ and n ≥ 2.
Hang Zhou, Qing Su, Nikhil Khanna
wiley +1 more source
The Cauchy problem of the one dimensional Schrödinger equation with non‐local potentials
, 1993 International Journal of Mathematics and Mathematical Sciences, Volume 16, Issue 4, Page 791-794, 1993.
I. E. Kougias
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Compact diagonal linear operators on Banach spaces with unconditional bases
, 1992 International Journal of Mathematics and Mathematical Sciences, Volume 16, Issue 4, Page 823-824, 1993.
Yun Sung Choi, Sung Guen Kim
wiley +1 more source
İzotropik Olmayan Potansiyel Teorik Eşitsizlik
, 2018 In this paper, the new weighted inequalities were derived by ?-distance which is similar to the given inequality for the potential operator defined in [1]. The results presented here would provide extensions of those given in earlier works.
Hüseyin Yıldırım +2 more
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On Syndetically Hypercyclic ∞-Tuples
, 2014 Copyright c ○ 2014 Mezban Habibi. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Mezban Habibi
core
, 2007 . We study a class of weighted shifts Wα defined by a recursively generated sequence α ≡ α0, · · · , αm−2, (αm−1, αm, αm+1) ∧ and characterize the difference between quadratic hyponormality and positive quadratic hyponormality.
Jasang Yoon, Yiu T Poon
core
The global energy balance as represented in CMIP6 climate models. [PDF]
Clim Dyn, 2020 Wild M.
europepmc +1 more source
Characterization of T Cells Specific for CFP-10 and ESAT-6 in Mycobacterium tuberculosis-Infected Mauritian Cynomolgus Macaques. [PDF]
Infect Immun, 2017 Ellis A +7 more
europepmc +1 more source