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Green functions of higher-order differential operators [PDF]

open access: yesJournal of Mathematical Physics, 1998
The Green functions of the partial differential operators of even order acting on smooth sections of a vector bundle over a Riemannian manifold are investigated via the heat kernel methods.
Gilkey P. B.   +5 more
core   +6 more sources

Reconstruction of Higher-Order Differential Operators by Their Spectral Data

open access: yesMathematics, 2022
This paper is concerned with inverse spectral problems for higher-order (n>2) ordinary differential operators. We develop an approach to the reconstruction from the spectral data for a wide range of differential operators with either regular or ...
Natalia P. Bondarenko
doaj   +3 more sources

Higher-Order Differential Operators on a Lie Group and Quantization [PDF]

open access: yesInternational Journal of Modern Physics A, 1998
This talk is devoted mainly to the concept of higher-order polarization on a group, which is introduced in the framework of a Group Approach to Quantization, as a powerful tool to guarantee the irreducibility of quantizations and/or representations of ...
Aldaya, V., Guerrero, J., Marmo, G.
core   +3 more sources

On Algebraically Integrable Differential Operators on an Elliptic Curve [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2011
We study differential operators on an elliptic curve of order higher than 2 which are algebraically integrable (i.e., finite gap). We discuss classification of such operators of order 3 with one pole, discovering exotic operators on special elliptic ...
Pavel Etingof, Eric Rains
doaj   +9 more sources

Higher-Spin Symmetries and Deformed Schrödinger Algebra in Conformal Mechanics

open access: yesAdvances in Mathematical Physics, 2018
The dynamical symmetries of 1+1-dimensional Matrix Partial Differential Equations with a Calogero potential (with/without the presence of an extra oscillatorial de Alfaro-Fubini-Furlan, DFF, term) are investigated.
Francesco Toppan, Mauricio Valenzuela
doaj   +2 more sources

Oscillation and spectral properties of some classes of higher order differential operators and weighted $n$th order differential inequalities

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2021
In this paper, we obtain strong oscillation and non-oscillation conditions for a class of higher order differential equations in dependence on an integral behavior of its coefficients in a neighborhood of infinity.
Aigerim Kalybay   +2 more
doaj   +1 more source

Local Solvability and Stability of an Inverse Spectral Problem for Higher-Order Differential Operators

open access: yesMathematics, 2023
In this paper, we, for the first time, prove the local solvability and stability of an inverse spectral problem for higher-order (n>3) differential operators with distribution coefficients.
Natalia P. Bondarenko
doaj   +1 more source

Necessary and Sufficient Conditions for Solvability of an Inverse Problem for Higher-Order Differential Operators

open access: yesMathematics, 2023
We consider an inverse spectral problem that consists in the recovery of the differential expression coefficients for higher-order operators with separate boundary conditions from the spectral data (eigenvalues and weight numbers).
Natalia P. Bondarenko
doaj   +1 more source

Notes on Higher-Spin Diffeomorphisms

open access: yesUniverse, 2021
Higher-spin diffeomorphisms are to higher-order differential operators what diffeomorphisms are to vector fields. Their rigorous definition is a challenging mathematical problem which might predate a better understanding of higher-spin symmetries and ...
Xavier Bekaert
doaj   +1 more source

Lieb–Thirring inequalities for higher order differential operators [PDF]

open access: yesMathematische Nachrichten, 2008
AbstractWe derive Lieb–Thirring inequalities for the Riesz means of eigenvalues of order γ ≥ 3/4 for a fourth order operator in arbitrary dimensions. We also consider some extensions to polyharmonic operators, and to systems of such operators, in dimensions greater than one.
Förster, Clemens, Östensson, Jörgen
openaire   +3 more sources

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