Results 51 to 60 of about 5,233,673 (285)

Weighted composition operators on the Fock space [PDF]

Operators and Matrices, 2018
In this paper, we study weighted composition operators on the Fock space. We show that a weighted composition operator is cohyponorma if and only if it is normal.
M. Fatehi
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Investigations of the numerical range of a operator matrix

Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2014
We consider a $2\times2$ operator matrix $A$ (so-called generalized Friedrichs model) associated with a system of at most two quantum particles on ${\rm d}$-dimensional lattice.
Tulkin Kh Rasulov, Elyor B Dilmurodov
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Complex structures on jet spaces and bosonic Fock space dynamics for causal variational principles [PDF]

, 2018
Based on conservation laws for surface layer integrals for minimizers of causal variational principles, it is shown how jet spaces can be endowed with an almost-complex structure.
F. Finster, N. Kamran
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Hankel transforms in generalized Fock spaces

International Journal of Mathematics and Mathematical Sciences, 1994
A classical Fock space consists of functions of the form,ϕ↔(ϕ0,ϕ1,…,ϕq),where ϕ0∈ℂ and ϕq∈Lp(ℝq), q≥1. We will replace the ϕq, q≥1 with test functions having Hankel transforms.
John Schmeelk
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Complex symmetric differential operators on Fock space [PDF]

Journal of Differential Equations, 2018
The space of entire functions which are integrable with respect to the Gaussian weight, known also as the Fock space, is one of the preferred functional Hilbert spaces for modelling and experimenting harmonic analysis, quantum mechanics or spectral ...
P. V. Hai, M. Putinar
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Fock space (2): Multiple fock spaces [PDF]

, 1993
From the algebraic point of view, a multiple Fock space over ℌ is nothing but a standard (symmetric or antisymmetric) Fock space over a direct sum of copies of ℌ,and new definitions are not necessary in principle. However, this chapter contains important new notation, and a few rather interesting constructions, like that of the “finite-temperature ...
openaire   +1 more source

On Stopping Fock-Space Processes [PDF]

Journal of Theoretical Probability, 2018
We consider the theory of stopping bounded processes within the framework of Hudson--Parthasarathy quantum stochastic calculus, for both identity and vacuum adaptedness. This provides significant new insight into Coquio's method of stopping (J. Funct. Anal. 238:149-180, 2006).
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Approximating the Fock space with the toy Fock space [PDF]

, 2003
I. The toy Fock space II. The Fock space III. Embedding the toy Fock space into the Fock space IV. Projections on the toy Fock space V. Approximations VI. Probabilistic interpretations VII.
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Investigating nuclear deformation and longitudinal form factors in some fp-shell nuclei using the shell model and Hartree - Fock approximation [PDF]

Ядерна фізика та енергетика
The current study examined the nuclear deformation of certain Titanium and Chromium isotopes using the shell model and Hartree - Fock approximation within the fp-shell model space.
A. A. Alzubadi, R. T. Mahdi
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Boundedness and Compactness of Hankel Operators on Large Fock Space

Journal of Function Spaces, 2022
We introduce the BMO spaces and use them to characterize complex-valued functions f such that the big Hankel operators Hf and Hf¯ are both bounded or compact from a weighted large Fock space Fpϕ into a weighted Lebesgue space Lpϕ when 1 ...
Xiaofeng Wang, Zhicheng Zeng
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