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In this paper, we completely characterize the order boundedness of weighted composition operators between different weighted Dirichlet spaces and different derivative Hardy spaces.

Functional Analysis · Mathematics 2019-04-15 Qingze Lin , Junming Liu , Yutian Wu

The aim of these notes is to discuss the completeness of the dilated systems in a most general framework of an arbitrary sequence lattice $X$, including weighted $\ell^p$ spaces. In particular, general multiplicative and completely…

Functional Analysis · Mathematics 2025-11-25 Nikolai Nikolski

In this paper we establish the existence of the extended Dirichlet space for nonlinear Dirichlet forms under mild conditions. We employ it to introduce and characterize criticality (recurrence) and subcriticality (transience) and establish…

Functional Analysis · Mathematics 2025-04-01 Marcel Schmidt , Ian Zimmermann

In this paper, using a generalization of a Richter and Sundberg representation theorem, we give a new characterization of Carleson measures for the Dirichlet-type space $\mathcal D(\mu)$ when $\mu$ is a finite sum of point masses. A…

Functional Analysis · Mathematics 2014-02-17 Gerardo Chacòn , Emmanuel Fricain , Mahmood Shabankhah

We introduce a class of group endomorphisms -- those of finite combinatorial rank -- exhibiting slow orbit growth. An associated Dirichlet series is used to obtain an exact orbit counting formula, and in the connected case this series is…

Dynamical Systems · Mathematics 2013-05-28 G. Everest , R. Miles , S. Stevens , T. Ward

Counting integral binary quadratic forms with certain restrictions is a classical problem. In this paper, we count binary quadratic forms of fixed discriminant given restrictions on the size of their coefficients. We accomplish this by…

Number Theory · Mathematics 2015-08-10 Thomas A. Hulse , E. Mehmet Kıral , Chan Ieong Kuan , Li-Mei Lim

A criterion and sufficient conditions for a vector to be a cyclic vector for a class of self-adjoint operators are obtained.

Functional Analysis · Mathematics 2009-01-27 Hidayat M. Huseynov

The purpose of this article is to present one and two-weight inequalities for bilinear multiplier operators in Dunkl setting with multiple Muckenhoupt weights. In order to do so, new results regarding Littlewood-Paley type theorems and…

Classical Analysis and ODEs · Mathematics 2025-03-04 Suman Mukherjee , Sanjay Parui

We study the zeros sets of functions in the Dirichlet space. Using Carleson formula for Dirichlet integral, we obtain some new families of zero sets. We also show that any closed subset of $E \subset \TT$ with logarithmic capacity zero is…

Classical Analysis and ODEs · Mathematics 2011-03-01 Karim Kellay , Javad Mashreghi

In this article, we consider the set of points for the holding of the equality in a weighted version of Suita conjecture for higher derivatives, and give relations between the set and the integer valued points of a class of harmonic…

Complex Variables · Mathematics 2022-12-07 Qi'an Guan , Xun Sun , Zheng Yuan

We introduce new functional spaces that generalize the weighted Bergman and Dirichlet spaces on the disk D(0,R) in the complex plane and the Bargmann-Fock spaces on the whole complex plane. We give a complete description of the considered…

Complex Variables · Mathematics 2015-04-06 A. El Hamyani , A. Ghanmi , A. Intissar , Z. Mouhcine , M. Souid El Ainin

We investigate the numerical ranges of weighted composition operators on weighted Dirichlet spaces, focusing on the properties of the inducing functions. We identify conditions on these functions under which the origin lies in the interior…

Functional Analysis · Mathematics 2026-02-11 Somdatta Barik , Anirban Sen , Kallol paul

Corresponding to any $(m-1)$-tuple of semi-spectral measures on the unit circle, a weighted Dirichlet-type space is introduced and studied. We prove that the operator of multiplication by the coordinate function on these weighted…

Functional Analysis · Mathematics 2022-07-07 S. Ghara , R. Gupta , Md. R. Reza

We establish weighted extrapolation theorems in classical and grand Lorentz spaces. As a consequence we have the weighted boundedness of operators of Harmonic Analysis in grand Lorentz spaces. We treat both cases: diagonal and off-diagonal…

Functional Analysis · Mathematics 2019-10-04 Vakhtang Kokilashvili , Alexander Meskhi

We first generalize the results of Le\'on and M\"uller [Studia Math. 175(1) 2006] on hypercyclic subspaces to sequences of operators on Fr\'echet spaces with a continuous norm. Then we study the particular case of iterates of an operator T…

Functional Analysis · Mathematics 2014-02-20 Quentin Menet

We study the cyclic and supercyclic dynamical properties of weighted composition operators on the Fock space $\mathcal{F}_2$. A complete characterization of cyclicity which depends on the derivative of the symbol for the composition…

Complex Variables · Mathematics 2019-01-08 Tesfa Mengestie

A new vector-tensor model of classical gravity, which contains coupling between the field strength of the vector field and the curvature tensors in six dimensions, is proposed. Cosmological solutions of the scale factors in this model with…

General Relativity and Quantum Cosmology · Physics 2014-12-16 Katsuhiko Yoshida , Kiyoshi Shiraishi

In this survey, we consider Banach spaces of analytic functions in one and several complex variables for which: (i) polynomials are dense, (ii) point-evaluations on the domain are bounded linear functionals, and (iii) the shift operator…

Functional Analysis · Mathematics 2025-04-23 Jeet Sampat

We present a tensor description of Euclidean spaces that emphasizes the use of geometric vectors. We demonstrate the effectiveness of the approach by proving of a number of integral identities with vector integrands.

Differential Geometry · Mathematics 2021-10-14 Pavel Grinfeld

Inversion theorems of Wiener type are essential tools in analysis and number theory. We derive a weighted version of an inversion theorem of Wiener type for general Dirichlet series from that of Edwards from 1957, and we outline an…

Functional Analysis · Mathematics 2012-10-02 Helge Glockner , Lutz G. Lucht