Results 21 to 30 of about 173,772,216 (255)

EXCITATION METHOD IN PROBLEMS OF REGRESSION OF A LINEAR MATRIX

open access: yesМіжнародний науково-технічний журнал "Проблеми керування та інформатики", 2020
In the framework of the theory of linear regression, linear from observations estimates are studied, in particular, the unbiased estimates, which lead to unbiased equations, among which the solutions are distinguished by the minimum norm, which allows ...
О.Г. Наконечний   +3 more
doaj   +1 more source

Does boundary quantum mechanics imply quantum mechanics in the bulk?

open access: yesJournal of High Energy Physics, 2018
Perturbative bulk reconstruction in AdS/CFT starts by representing a free bulk field ϕ (0) as a smeared operator in the CFT. A series of 1/N corrections must be added to ϕ (0) to represent an interacting bulk field ϕ.
Daniel Kabat, Gilad Lifschytz
doaj   +1 more source

Polarisability and magnetisation of electrically K-mouflaged objects: the Born-Infeld ModMax case study

open access: yesJournal of High Energy Physics, 2023
We consider a family of non-linear theories of electromagnetism that interpolate between Born-Infeld at small distances and the recently introduced ModMax at large distances.
Jose Beltrán Jiménez   +2 more
doaj   +1 more source

Exact results for duality-covariant integrated correlators in $\mathcal{N}=4$ SYM with general classical gauge groups

open access: yesSciPost Physics, 2022
We present exact expressions for certain integrated correlators of four superconformal primary operators in the stress tensor multiplet of $\cN=4$ supersymmetric Yang--Mills (SYM) theory with classical gauge group, $G_N$ $= SO(2N)$, $SO(2N+1)$, $USp(2N)$.
Daniele Dorigoni, Michael B. Green, Congkao Wen
doaj   +1 more source

The perturbation theory for linear operators of discrete type [PDF]

open access: yesPacific Journal of Mathematics, 1983
A perturbation result for unbounded operators of discrete type [\textit{N. Dunford} and \textit{J. Schwartz}, Linear Operators, part III (1971; Zbl 0243.47001): Spectral Operators, XIX, 2, Theorem 7] is derived using the notion of unconditional basis instead of assuming weak completeness of the underlying Banach space.
openaire   +2 more sources

Quark-Antiquark Effective Potential in Symplectic Quantum Mechanics

open access: yesAdvances in High Energy Physics, 2022
In this paper, we study within the structure of Symplectic Quantum Mechanics a bidimensional nonrelativistic strong interaction system which represent the bound state of heavy quark-antiquark, where we consider a Cornell potential which consists of ...
Renato Luz   +5 more
doaj   +1 more source

Schrödinger operators with δ and δ′-potentials supported on hypersurfaces [PDF]

open access: yes, 2013
Self-adjoint Schrödinger operators with δ and δ′-potentials supported on a smooth compact hypersurface are defined explicitly via boundary conditions.
Lotoreichik, Vladimir   +2 more
core   +3 more sources

On Weighted Ostrowski Type Inequalities for Operators and Vector-Valued Functions [PDF]

open access: yes, 2001
Some weighted Ostrowski type integral inequalities for operators and vector-valued functions in Banach spaces are given.
Cerone, Pietro   +3 more
core   +3 more sources

Yang-Mills form factors on self-dual backgrounds

open access: yesJournal of High Energy Physics, 2023
The construction of perturbative quantities on non-linear backgrounds leads to the possibility of incorporating strong field effects in perturbation theory.
Giuseppe Bogna, Lionel Mason
doaj   +1 more source

A complete non-perturbative renormalization prescription for quasi-PDFs

open access: yesNuclear Physics B, 2017
In this work we present, for the first time, the non-perturbative renormalization for the unpolarized, helicity and transversity quasi-PDFs, in an RI′ scheme.
Constantia Alexandrou   +6 more
doaj   +1 more source

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