Results 31 to 40 of about 1,588,278 (277)

Double Operator Integrals

Journal of Functional Analysis, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
de Pagter, B., Witvliet, H., Sukochev, F.A.   +2 more
openaire   +2 more sources

On Fourier Integral Operators [PDF]

Proceedings of the American Mathematical Society, 1982
We consider operators of the form: ∫
openaire   +1 more source

COMPOSITE OPERATORS AS INTEGRATION VARIABLES IN BEREZIN INTEGRALS [PDF]

Modern Physics Letters A, 1995
We define nonlinear changes of variables in Berezin integrals as new integration variables of homogeneous polynomials of the defining elements in the Grassmann algebra. We perform such a change of variables in the partition function of QCD by introducing as integration variables cubic and quadratic polynomials of the quark field, with the quantum ...
De Franceschi, G., Palumbo, F.
openaire   +2 more sources

Finite-dimensional perturbations of linear operators and some applications to boundary integral equations [PDF]

, 1999
Finite-dimensional perturbing operators are constructed using some incomplete information about eigen-solutions of an original and/or adjoint generalized Fredholm operator equation (with zero index).
S.E. Mikhailov, Mikhailov, SE
core   +1 more source

Results on integral inequalities for a generalized fractional integral operator unifying two existing fractional integral operators

Nonlinear Analysis
The main aim of this article is to design a novel framework to study a generalized fractional integral operator that unifies two existing fractional integral operators.
Supriya Kumar Paul, Lakshmi Narayan Mishra, Vishnu Narayan Mishra   +2 more
doaj   +1 more source

Continuous Compressed Sensing Hilbert-Schmidt Integral Operator

IEEE Access, 2022
Continuous Compressed-Sensing-Karhunen-Loéve Expansion (CS-KLE) has been proposed. Compressed sensing has been proposed as a highly efficient computational method to represent compressible signals using a few numbers of linear functional.
Mohammadreza Robaei, Robert Akl
doaj   +1 more source

Localized boundary-domain singular integral equations based on harmonic parametrix for divergence-form elliptic PDEs with variable matrix coefficients [PDF]

, 2013
This is the post-print version of the Article. The official publised version can be accessed from the links below. Copyright @ 2013 Springer BaselEmploying the localized integral potentials associated with the Laplace operator, the Dirichlet, Neumann and
Mikhailov, SE, Natroshvili, D, Chkadua, O   +2 more
core   +1 more source

Linear Fractional Transformations of Nevanlinna Functions Associated with a Nonnegative Operator [PDF]

, 2011
In the present paper a subclass of scalar Nevanlinna functions is studied, which coincides with the class of Weyl functions associated to a nonnegative symmetric operator of defect one in a Hilbert space.
Winkler, Henrik,, Henrik Winkler, Hassi, Seppo,, Wietsma, Rudi,, Henk de Snoo, Jussi Behrndt, Rudi Wietsma, de Snoo, Henk, Seppo Hassi, Snoo, Henk de, Snoo, Henk de,, Behrndt, Jussi, Hassi, Seppo, Behrndt, Jussi,, Wietsma, Rudi, Winkler, Henrik   +15 more
core   +2 more sources

Corrigendum to “Operators with an integral representation”

Proceedings of the American Mathematical Society, 2020
We make an observation that may clarify the main definition from our paper [Proc. Amer. Math. Soc. 144 (2016), pp. 5275–5290].
R. Cilia, J. M. Gutiérrez
openaire   +3 more sources

An integral operator on the classes \(\mathcal{S}^{\ast}(\alpha )\) and \(\mathcal{CVH}(\beta )\)

, 2015
The purpose of this paper is to study some properties related to convexity order and coefficients estimation for a general integral operator. We find the convexity order for this operator, using the analytic functions from the class of starlike functions
Ularu, Nicoleta, Breaz, Nicoleta
core   +1 more source