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  1. Positive definiteness of Hadamard exponentials and Hadamard inverses

    Let A be a positive semidefinite matrix. It is known that the Hadamard exponential of A is positive semidefinite; it is positive definite if and only...

    Takashi Sano in Positivity
    Article 13 July 2024
  2. Weighted composition operators on variable exponent Lebesgue spaces

    In this paper, we characterize the boundedness of weighted composition operators, induced by measurable transformations and complex-valued measurable...

    Gopal Datt, Daljeet Singh Bajaj, Alberto Fiorenza in Advances in Operator Theory
    Article 13 July 2024
  3. Envelopes in Banach spaces

    We introduce the notion of isometric envelope of a subspace in a Banach space, establishing its connections with several key elements: (a) we explore...

    V. Ferenczi, J. Lopez-Abad in Banach Journal of Mathematical Analysis
    Article Open access 12 July 2024
  4. Clark Measures on Bounded Symmetric Domains

    Given a bounded symmetric domain D , we study (positive) pluriharmonic functions on D and investigate a possible analogue of the family of Clark...

    Article Open access 11 July 2024
  5. Clifford-valued linear canonical wave-packet transform and corresponding uncertainty principles

    In an effort to express Clifford-valued signals efficiently in time–frequency domain, we introduce the notion of the novel integral transform known...

    Article 09 July 2024
  6. From Zygmund space to Bergman–Zygmund space

    Hong Rae Cho, Hyungwoon Koo, Young Joo Lee in Banach Journal of Mathematical Analysis
    Article 08 July 2024
  7. Deformations and q-Convolutions. Old and New Results

    This paper is the survey of some of our results related to q -deformations of the Fock spaces and related to q -convolutions for probability measures...

    Marek Bożejko, Wojciech Bożejko in Complex Analysis and Operator Theory
    Article Open access 07 July 2024
  8. On a class of Kirchhoff problems with nonlocal terms and logarithmic nonlinearity

    In this present paper, we concern investigating nonlinear Kirchhoff-type problems subject to Dirichlet boundary conditions, incorporating nonlocal...

    El-Houari Hamza, Arhrrabi Elhoussain, J. Vanterler da da C. Sousa in Journal of Pseudo-Differential Operators and Applications
    Article 07 July 2024
  9. Ideal of multilinear \({\mathcal {F}}_{\vec {p},\vec {q}}\,\)-factorable operators and applications

    In the present paper we introduce a method for generating ideals of linear and multilinear operators from what we call generalized left and right...

    Dahmane Achour, Orlando Galdames-Bravo, Rachid Yahi in Advances in Operator Theory
    Article 06 July 2024
  10. Optimality conditions and duality for multiobjective semi-infinite optimization problems with switching constraints on Hadamard manifolds

    This paper deals with a certain class of multiobjective semi-infinite programming problems with switching constraints (in short, MSIPSC) in the...

    Balendu Bhooshan Upadhyay, Arnav Ghosh in Positivity
    Article 05 July 2024
  11. Free uniformly complete vector lattices

    Eduard Emelyanov, Svetlana Gorokhova in Positivity
    Article 05 July 2024
  12. Pseudo-differential operators in several p-adic variables and sub-Markovian semigroups

    This article marks the inaugural exploration of certain classes of negative or positive definite functions in several p -adic variables. Associated...

    Anselmo Torresblanca-Badillo, Edilberto Arroyo-Ortiz, Ronald Barrios-Garizao in Journal of Pseudo-Differential Operators and Applications
    Article 05 July 2024
  13. On the Expansion of Resolvents and the Integrated Density of States for Poisson Distributed Schrödinger Operators

    We consider a Schrödinger operator with random potential distributed according to a Poisson process. We show that under a uniform moment bound...

    David Hasler, Jannis Koberstein in Complex Analysis and Operator Theory
    Article Open access 04 July 2024
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