Results 101 to 110 of about 103,519 (218)

Adjoint and self-adjoint differential operators on graphs

Electronic Journal of Differential Equations, 1998
A differential operator on a directed graph with weighted edges is characterized as a system of ordinary differential operators. A class of local operators is introduced to clarify which operators should be considered as defined on the graph.
Robert Carlson
doaj  

Self-adjoint differential operators [PDF]

Pacific Journal of Mathematics, 1970
openaire   +3 more sources

On m-complex-self-adjoint operators

Annals of Functional Analysis
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Muneo Chō, Ji Eun Lee
openaire   +1 more source

Spectral analysis of q-fractional Sturm-Liouville operators

Electronic Journal of Differential Equations, 2017
In this article, we study q-fractional Sturm-Liouville operators. Using by the functional method, we pass to a new operator. Then, showing that this operator is a maximal operator and constructing a self-adjoint dilation of the maximal dissipative ...
Bilender P. Allahverdiev, Huseyin Tuna
doaj  

ON THE DIFFERENCE BETWEEN HERMITIAN OPERATORS AND SELF-ADJOINT OPERATORS

Momento, 2013
We explore the difference between the notions of hermitian and self-adjoint operator, illustrating with examples its relevance for the correct description of quantum systems.
Karen M. Fonseca, Fabián Torres-Ardila
doaj  

Products of self-adjoint operators.

Michigan Mathematical Journal, 1969
Radjavi, Heydar, Williams, James P.
openaire   +2 more sources

Well-posedness of an elliptic equation with involution

Electronic Journal of Differential Equations, 2015
In this article, we study a mixed problem for an elliptic equation with involution. This problem is reduced to boundary value problem for the abstract elliptic equation in a Hilbert space with a self-adjoint positive definite operator. Operator tools
Allaberen Ashyralyev, Abdizhahan M. Sarsenbi   +1 more
doaj  

Some spectral properties of a generalized Friedrichs model

Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2011
We consider self-adjoint generalized Friedrichs model h(p), p ∈ T3 (T3 is the threedimensional torus), in the case where the parameter functions w1 and w2 of this operator has the special forms.
Tulkin Kh Rasulov, Khalim Kh Turdiev
doaj  

Nonlinear Stability in a Free Boundary Model of Active Locomotion. [PDF]

Arch Ration Mech Anal
Berlyand L, Safsten CA, Truskinovsky L.
europepmc   +1 more source

A Weyl Matrix Perspective on Unbounded Non-Self-Adjoint Jacobi Matrices. [PDF]

Complex Anal Oper Theory
Eichinger B, Lukić M, Young G.
europepmc   +1 more source