Results 11 to 20 of about 2,222 (252)

Order-Bounded Difference in Weighted Composition Operators Between Fock Spaces

open access: yesMathematics
There are two aims in this paper. The first aim is to characterize the order-bounded weighted composition operators between Fock spaces, and the second is to further characterize the order-bounded difference in weighted composition operators between Fock
Xiao-Feng Peng, Zhi-Jie Jiang
doaj   +2 more sources

Fourier transforms in generalized Fock spaces [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1990
A classical Fock space consists of functions of the form,Φ↔(ϕ0,ϕ1,…,ϕq,…),where ϕ0∈C and ϕq∈L2(R3q), q≥1. We will replace the ϕq, q≥1 with q-symmetric rapid descent test functions within tempered distribution theory.
John Schmeelk
doaj   +2 more sources

Hankel Operators on Fock Spaces [PDF]

open access: yes, 2013
We study Hankel operators on the weighted Fock spaces\ud Fp. The boundedness and compactness of these operators are characterized in terms of BMO and VMO, respectively. Along the way, we also study Berezin transform and harmonic conjugates on the plane.
Perala, A.   +2 more
openaire   +2 more sources

Superoscillations and Fock spaces

open access: yesJournal of Mathematical Physics, 2023
In this paper we use techniques in Fock spaces theory and compute how the Segal-Bargmann transform acts on special wave functions obtained by multiplying superoscillating sequences with normalized Hermite functions. It turns out that these special wave functions can be constructed also by computing the approximating sequence of the normalized Hermite ...
Daniel Alpay   +4 more
openaire   +6 more sources

Weighted superposition operators on Fock spaces [PDF]

open access: yes, 2022
We characterize all pairs of entire functions (u,ψ) for which the induced weighted superposition operator S(u,ψ) transforms one Fock space into another Fock space.
Mengestie, Tesfa
core   +2 more sources

Fredholm Toeplitz operators on doubling Fock spaces [PDF]

open access: yes, 2021
Recently the authors characterized the Fredholmn properties of Toeplitz operators on weighted Fock spaces when the Laplacian of the weight function is bounded below and above.
Hu, Zhangjian, Virtanen, Jani A.
core   +1 more source

Variable exponent Fock spaces [PDF]

open access: yes, 2020
summary:We introduce variable exponent Fock spaces and study some of their basic properties such as boundedness of evaluation functionals, density of polynomials, boundedness of a Bergman-type projection and duality.
Chacón, Gerardo R., Chacón, Gerardo A.
core   +1 more source

Fredholm theory of Toeplitz operators on doubling Fock Hilbert spaces [PDF]

open access: yes, 2020
We study the Fredholm properties of Toeplitz operators acting on doubling Fock Hilbert spaces, and describe their essential spectra for bounded symbols of vanishing oscillation.
Al-Qabani, Aamena   +2 more
core   +2 more sources

On Toeplitz operators between different Fock–Sobolev-type spaces

open access: yesJournal of Inequalities and Applications, 2023
In this paper, we characterize those positive Borel measurable symbols μ on C n $\mathbb{C}^{n}$ that induce the Toeplitz operators T μ α $T^{\alpha}_{\mu}$ to be bounded or compact between different Fock–Sobolev–type spaces F α p $F^{p}_{\alpha}$ and F ...
Jianjun Chen, Guangxia Xu
doaj   +1 more source

Closed Range Integral Operators on Fock Spaces [PDF]

open access: yes, 2023
We study the closed range problem for generalized Volterra-type integral operators on Fock spaces. We first answer the problem using the notions of sampling sets, reverse Fock–Carleson measures, Berezin type integral transforms, and essential boundedness
Fekadiea, Zenaw   +2 more
core   +1 more source

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