Results 21 to 30 of about 328,728 (289)

Perturbative static quark potential in Maximal Abelian gauge

open access: yesPhysics Letters B, 2019
We calculate the static quark potential for an SU(N) gauge theory in the Maximal Abelian gauge as well as its Abelian projection up to two loops in perturbation theory. We discuss its renormalization properties.
Matthias Berwein, Yukinari Sumino
doaj   +1 more source

The Simple Center Projection of SU(2) Gauge Theory [PDF]

open access: yes, 2000
We consider the SU(2) lattice gauge model. We propose a new gauge invariant definition of center projection, which we call the Simple Center Projection.
A.I. Veselov   +19 more
core   +5 more sources

Dictionary learning via projected maximal exploration

open access: yes2013 IEEE Global Conference on Signal and Information Processing, 2013
This work presents a geometrical analysis of the Large Step Gradient Descent (LGD) dictionary learning algorithm. LGD updates the atoms of the dictionary using a gradient step with a step size equal to twice the optimal step size. We show that the large step gradient descent can be understood as a maximal exploration step where one goes as far away as ...
Mailhe, B, Plumbley, MD
openaire   +3 more sources

An effective action for monopoles and knot solitons in Yang-Mills theory [PDF]

open access: yes, 1999
By comparision with numerical results in the maximal Abelian projection of lattice Yang-Mills theory, it is argued that the nonperturbative dynamics of Yang Mills theory can be described by a set of fields that take their values in the coset space SU(2 ...
Faddeev   +7 more
core   +2 more sources

Computation of maximal projection constants [PDF]

open access: yesJournal of Functional Analysis, 2019
The linear projection constant $Π(E)$ of a finite-dimensional real Banach space $E$ is the smallest number $C\in [0,+\infty)$ such that $E$ is a $C$-absolute retract in the category of real Banach spaces with bounded linear maps. We denote by $Π_n$ the maximal linear projection constant amongst $n$-dimensional Banach spaces.
openaire   +3 more sources

On projection constant problems and the existence of metric projections in normed spaces

open access: yesAbstract and Applied Analysis, 2001
We give the sufficient conditions for the existence of a metric projection onto convex closed subsets of normed linear spaces which are reduced conditions than that in the case of reflexive Banach spaces and we find a general formula for the projections ...
Entisarat El-Shobaky   +2 more
doaj   +1 more source

New construction and proof techniques of projection algorithm for countable maximal monotone mappings and weakly relatively non-expansive mappings in a Banach space

open access: yesJournal of Inequalities and Applications, 2018
In a real uniformly convex and uniformly smooth Banach space, some new monotone projection iterative algorithms for countable maximal monotone mappings and countable weakly relatively non-expansive mappings are presented.
Li Wei, Ravi P. Agarwal
doaj   +1 more source

On maximal relative projection constants

open access: yesJournal of Mathematical Analysis and Applications, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Simon Foucart, Lesław Skrzypek
openaire   +2 more sources

Level of adaptability of five conic map projection variants on Macedonian national area as state map projection [PDF]

open access: yesMicro, Macro & Mezzo Geoinformation, 2018
Nowadays a large number of cartographic projections are used for many purposes; some of them are utilized as cartographic state projections. In the Republic of Macedonia the Gauss-Krüger projection is in use as official state cartographic projection ...
Veton HAMZA
doaj  

Strong convergence theorems by hybrid and shrinking projection methods for sums of two monotone operators

open access: yesJournal of Inequalities and Applications, 2017
In this paper, we introduce two iterative algorithms for finding the solution of the sum of two monotone operators by using hybrid projection methods and shrinking projection methods.
Tadchai Yuying, Somyot Plubtieng
doaj   +1 more source

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