Results 21 to 30 of about 181,839 (320)
Mathematics, 2022 This paper mainly considers a class of non-weight modules over the Lie algebra of the Weyl type. First, we construct the U(h)-free modules of rank one over the differential operator algebra.
Munayim Dilxat +3 more
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Weyl's theorem for algebraically k-quasiclass A operators [PDF]
Opuscula Mathematica, 2012 If \(T\) or \(T^*\) is an algebraically \(k\)-quasiclass \(A\) operator acting on an infinite dimensional separable Hilbert space and \(F\) is an operator commuting with \(T\), and there exists a positive integer \(n\) such that \(F^n\) has a finite rank,
Fugen Gao, Xiaochun Fang
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The bi-conical vector model at 1/N
Journal of High Energy Physics, 2021 We study finite N aspects of the O(m) × O(N − m) vector model with quartic interactions in general 2 ≤ d ≤ 6 spacetime dimensions. This model has recently been shown [1, 2] to display the phenomenon of persistent symmetry breaking at a perturbative ...
Noam Chai +3 more
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Riesz operators with finite rank iterates [PDF]
Journal of Mathematical Analysis and Applications, 2018 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Laustsen, Niels Jakob +1 more
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Stability of some essential B-spectra of pencil operators and application
Extracta Mathematicae, 2021 In this paper, we give some results on the essential B-spectra of a linear operator pencil, which are used to determine the essential B-spectra of an integro-differential operator with abstract boundary conditions in the Banach space Lp([−a, a] × [−1, 1])
A. Ben Ali, M. Boudhief, N. Moalla
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Dynamical systems method for solving linear finite-rank operator equations [PDF]
, 2008 A version of the Dynamical Systems Method (DSM) for solving ill-conditioned linear algebraic systems is studied in this paper. An {\it a priori} and {\it a posteriori} stopping rules are justified.
Hoang, N. S., Ramm, A. G.
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A remark on the slice map problem
International Journal of Mathematics and Mathematical Sciences, 1994 It is shown that there exist a σ-weakly closed operator algebra A˜, generated by finite rank operators and a σ-weakly closed operator algebra B˜ generated by compact operators such that the Fubini product A˜⊗¯FB˜ contains properly A˜⊗¯B˜.
Muneo Chō, Tadasi Huruya
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Model and Controller Order Reduction for Infinite Dimensional Systems [PDF]
ITB Journal of Engineering Science, 2010 This paper presents a reduced order model problem using reciprocal transformation and balanced truncation followed by low order controller design of infinite dimensional systems.
Fatmawati +3 more
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Mappings of Type Special Space of Sequences
Journal of Function Spaces, 2016 We give sufficient conditions on a special space of sequences defined by Mohamed and Bakery (2013) such that the finite rank operators are dense in the complete space of operators whose approximation numbers belong to this sequence space.
Awad A. Bakery
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Stability analysis of a non-unitary CFT
Journal of High Energy Physics, 2023 We study instability of lowest dimension operator (i.e., the imaginary part of its operator dimension) in the rank-Q traceless symmetric representation of the O(N) Wilson-Fisher fixed point in D = 4 + ϵ.
Masataka Watanabe
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