Results 31 to 40 of about 8,030 (311)

Closure Operators and Lattice Extensions [PDF]

open access: yesOrder, 2004
Let \(\Gamma \) be a closure operator on a set \(X\). Then Cl\((X,\Gamma )\) denotes the lattice of \(\Gamma \)-closed subsets of \(X\). If \(\Gamma \) and \(\Delta \) are closure operators on the same set \(X\), then \(\Delta \) is a weak (resp. strong) extension of \(\Gamma \) if Cl\((X,\Gamma )\) is a complete meet-subsemilattice (resp.
openaire   +2 more sources

Dirac pairings, one-form symmetries and Seiberg-Witten geometries

open access: yesJournal of High Energy Physics, 2022
The Coulomb phase of a quantum field theory, when present, illuminates the analysis of its line operators and one-form symmetries. For 4d N $$ \mathcal{N} $$ = 2 field theories the low energy physics of this phase is encoded in the special Kähler ...
Philip C. Argyres   +2 more
doaj   +1 more source

Lattice properties of integral operators [PDF]

open access: yesProceedings of the American Mathematical Society, 1978
In this paper we are concerned with linear operators K : L → M K:L \to M , where L is a Riesz subspace of measurable, finite a.e. functions and M is the class of all measurable, finite a.e. functions defined by k ( x , y ) k(x,y) is a ...
openaire   +2 more sources

Difference operators on lattices

open access: yesJournal of Algebra and Its Applications, 2023
A differential operator of weight [Formula: see text] is the algebraic abstraction of the difference quotient [Formula: see text], including both the derivation as [Formula: see text] approaches to [Formula: see text] and the difference operator when [Formula: see text].
Aiping Gan, Li Guo
openaire   +2 more sources

Bilinear quark operators in the RI/SMOM scheme at three loops

open access: yesPhysics Letters B, 2020
We consider the renormalization of the matrix elements of the bilinear quark operators ψ¯ψ, ψ¯γμψ, and ψ¯σμνψ at next-to-next-to-next-to-leading order in QCD perturbation theory at the symmetric subtraction point.
Bernd A. Kniehl, Oleg L. Veretin
doaj   +1 more source

Lattices of Operators

open access: yesВладикавказский математический журнал, 1974
The present chapter is primarily concerned with vector lattices of linear operators between Banach lattices or, more precisely, with the problem of exhibiting significant classes of linear operators possessing a (linear) modulus. Up to the late 1960’s, the available knowledge in this area appeared somewhat fragmentary and incoherent; above all, however,
openaire   +3 more sources

Integral operators on lattices

open access: yes, 2021
22 ...
Gan, Aiping, Guo, Li
openaire   +2 more sources

Perturbative Renormalization of Wilson line operators

open access: yesEPJ Web of Conferences, 2018
We present results for the renormalization of gauge invariant nonlocal fermion operators which contain a Wilson line, to one loop level in lattice perturbation theory.
Constantinou Martha   +1 more
doaj   +1 more source

Emergent Yang-Mills theory

open access: yesJournal of High Energy Physics, 2020
We study the spectrum of anomalous dimensions of operators dual to giant graviton branes. The operators considered belong to the su(2|3) sector of N $$ \mathcal{N} $$ = 4 super Yang-Mills theory, have a bare dimension ∼ N and are a linear combination of ...
Robert de Mello Koch   +3 more
doaj   +1 more source

Analysing the significance of small conformational changes and low occupancy states in serial crystallographic data

open access: yesFEBS Open Bio, EarlyView.
This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill   +4 more
wiley   +1 more source

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