Results 11 to 20 of about 364 (245)

Subdimensional disorder and logarithmic defect

Journal of High Energy Physics
We study quenched disorder localized on a p-dimensional subspacetime in a d-dimensional conformal field theory. Motivated by the logarithmic behavior often associated with disorder, we introduce a defect setup in which bulk local operators transform in ...
Soichiro Shimamori, Yifan Wang
doaj   +2 more sources

Convergence of positive operators [PDF]

The extension and convergence of positive operators is investigated by means of a monotone approximation technique. Some generalizations and extensions of Korovkin's monotone operator theorem on C[0, 1] are given.
James, Ralph Leland
core   +6 more sources

Homogenization of Some Selected Elliptic and Parabolic Problems Employing Suitable Generalized Modes of Two-Scale Convergence [Elektronisk resurs]

, 2010
The present thesis is devoted to the homogenization of certain elliptic and parabolic partial differential equations by means of appropriate generalizations of the notion of two-scale convergence. Since homogenization is defined in terms of H-convergence,
Holmbom, Anders,, Lindberg, Marianne,, Gulliksson, Mårten,, Flodén, Liselott,, Wall, Peter,, Persson, Jens,   +5 more
core   +9 more sources

Unfounded Sets and Well-Founded Semantics of Answer Set Programs with Aggregates [PDF]

, 2011
Logic programs with aggregates (LPA) are one of the major linguistic extensions to Logic Programming (LP). In this work, we propose a generalization of the notions of unfounded set and well-founded semantics for programs with monotone and antimonotone ...
Alviano, Mario, Faber, Wolfgang, Leone, Nicola, Calimeri, Francesco, Perri, Simona   +4 more
core   +3 more sources

On the dynamics of sup-norm non-expansive maps [PDF]

, 2005
We present several results for the periods of periodic points of sup-norm non-expansive maps. In particular, we show that the period of each periodic point of a sup-norm non-expansive map $f\colon M\to M$, where $M\subset \mathbb{R}^n$, is at most ...
Lemmens, Bas, Scheutzow, Michael, Bas Lemmens, Michael Scheutzow   +3 more
core   +1 more source

Coupled coincidence point theorems for mixed monotone nonlinear operators [PDF]

, 2012
We obtain coupled coincidence and coupled common fixed point theorems for mixed g-monotone nonlinear operators F:X×X→X in partially ordered metric spaces.
Berinde, Vasile
core   +1 more source

Monotonicity of the Polaron Energy II: General Theory of Operator Monotonicity [PDF]

Journal of Statistical Physics, 2013
We construct a general theory of operator monotonicity and apply it to the Fröhlich polaron hamiltonian. This general theory provides a consistent viewpoint of the Fröhlich model.
openaire   +2 more sources

General monotonicity and interpolation of operators

Journal of Mathematical Analysis and Applications, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Stepan M. Grigoriev, Yoram Sagher, Thomas R. Savage   +2 more
openaire   +2 more sources

Operator Monotone Functions and Convexity of Its Derivatives Norms

پژوهش‌های ریاضی, 2021
Introduction  Given the important role convex and quasi-convex functions play in many areas of mathematics and especially in optimization, one of the inequalities that has attracted the attention of many mathematicians in recent decades is Hermit ...
Zahra Rahimi Chegeni, amir ghasem ghazanfari, Kamal Falahi   +2 more
doaj  

Infimal generators and monotone sublinear operators

Constructive Mathematical Analysis, 2021
We provide a version of Korovkin-type theorems for monotone sublinear operators in vector lattices and discuss the possibilities of further extensions and generalizations.
openaire   +4 more sources