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In this paper, we consider Rota-Baxter operators on involutive associative algebras. We define cohomology for Rota-Baxter operators on involutive algebras that governs the formal deformation of the operator. This cohomology can be seen as…

Rings and Algebras · Mathematics 2020-06-18 Apurba Das

In this paper, we aim to introduce and characterize the concept of numerical radius orthogonality of operators on a complex Hilbert space $\mathcal{H}$ which are bounded with respect to the semi-norm induced by a positive operator $A$ on…

Functional Analysis · Mathematics 2024-08-13 Pintu Bhunia , Kais Feki , Kallol Paul

In this paper we find all complex symmetric weighted composition operators with special conjugations. Then we give spectral properties of these complex symmetric weighted composition operators.

Functional Analysis · Mathematics 2018-04-10 Mahsa Fatehi

We consider the algebra of mixed multidimensional integral operators. In particular, Fredholm integral operators of the first and second kind belongs to this algebra. For the piecewise constant kernels we provide an explicit representation…

Functional Analysis · Mathematics 2017-06-20 Anton A. Kutsenko

Integration over curved manifolds with higher codimension and, separately, discrete variants of continuous operators, have been two important, yet separate themes in harmonic analysis, discrete geometry and analytic number theory research.…

Number Theory · Mathematics 2020-06-18 Theresa C. Anderson , Eyvindur Ari Palsson , Angel V. Kumchev

In this paper, the main aim is to consider the boundedness of commutators of multilinear Calder\'{o}n-Zygmund operators with Lipschitz functions in the context of the variable exponent Lebesgue spaces. Furthermore, the variable versions of…

Classical Analysis and ODEs · Mathematics 2020-03-23 Jianglong Wu , Pu Zhang

We study some mapping properties of Volterra type integral operators and composition operators on model spaces. We also discuss and give out a couple of interesting open problems in model spaces where any possible solution of the problems…

Complex Variables · Mathematics 2015-07-16 Tesfa Mengestie

The purpose of this paper is to obtain an integral representation for the difference $f(L_1)-f(L_2)$ of functions of maximal dissipative operators. This representation in terms of double operator integrals will allow us to establish…

Functional Analysis · Mathematics 2018-03-01 Aleksei Aleksandrov , Vladimir Peller

This paper surveys recent work on Lie algebras of differential operators and their application to the construction of quasi-exactly solvable Schroedinger operators.

High Energy Physics - Theory · Physics 2007-05-23 Federico Finkel , Artemio Gonzalez-Lopez , Niky Kamran , Peter J. Olver , Miguel A. Rodriguez

In this paper we characterize BMO in terms of the boundedness of commutators of various bilinear singular integral operators with pointwise multiplication. In particular, we study commutators of a wide class of bilinear operators of…

Classical Analysis and ODEs · Mathematics 2014-12-11 Lucas Chaffee

One of the major goals in the theory of Toeplitz operators on the Bergman space over the unit disk $\mathbb{D}$ in the complex place $\mathbb{C}$ is to completely describe the commutant of a given Toeplitz operator, that is, the set of all…

Functional Analysis · Mathematics 2013-08-01 Issam Louhichi , Fanilo Randriamahaleo , Lova Zakariasy

Rota-Baxter operators have been paid much attention in the last few decades as they have many applications in mathematics and physics. In this paper, our object of study is modified Rota-Baxter operators on Leibniz algebras. We investigate…

Rings and Algebras · Mathematics 2023-11-23 Bibhash Mondal , Ripan Saha

We study the algebra of invariant differential operators on a certain homogeneous vector bundle over a Riemannian symmetric space of type $A_2$. We computed radial parts of its generators explicitly to obtain matrix-valued commuting…

Representation Theory · Mathematics 2017-09-22 Nobukazu Shimeno

We study the Hp-Lq boundedness of certain integral operators of fractional type.

Classical Analysis and ODEs · Mathematics 2017-03-10 Pablo Rocha

In this work we give explicit formulas for the Schwartz integral kernels of some multipliers of the Schr\"odinger operator with inverse square potential on $\R^\ast_+$. By using the integral transforms connecting these multipliers we obtain…

Mathematical Physics · Physics 2019-05-23 Mohamed Vall Ould Moustapha

This paper describes a higher-categorical version of the theory of colored operads, giving applications to the study of commutative ring spectra.

Category Theory · Mathematics 2009-05-04 Jacob Lurie

The main purpose of this paper is, in the general setting of the adjointable operators on Hilbert $C^*$-modules, to develop two new tools that can be applied to deal with the positive solutions of certain operator equations, the operator…

Functional Analysis · Mathematics 2024-06-14 Mohammad Sababheh , Hamid Reza Moradi , Qingxiang Xu , Shuo Zhao

We introduce a new family of invariant differential operators associated with $\lambda$-cosine and Funk-Radon transforms on Stiefel and Grassmann manifolds. These operators reduce the order of the $\lambda$-cosine transforms and yield new…

Functional Analysis · Mathematics 2020-07-09 Boris Rubin

In this paper, we will study the boundedness properties of multilinear Calderon--Zygmund operators and multilinear fractional integrals on products of weighted Morrey spaces with multiple weights.

Classical Analysis and ODEs · Mathematics 2013-03-20 Hua Wang , Wentan Yi

We study the type set of singular measures of fractional type on the Heisenbrg group.

Classical Analysis and ODEs · Mathematics 2017-01-01 Tomás Godoy , Pablo Rocha