Results 311 to 320 of about 187,605 (363)

A survey of χ ‐boundedness

open access: yesJournal of Graph Theory, 2018
If a graph has bounded clique number and sufficiently large chromatic number, what can we say about its induced subgraphs? András Gyárfás made a number of challenging conjectures about this in the early 1980s, which have remained open until recently; but
A. Scott, P. Seymour
semanticscholar   +5 more sources

Boundedness of Classical Solutions to a Degenerate Keller–Segel Type Model with Signal-Dependent Motilities

Acta Applicandae Mathematicae - An International Survey Journal on Applying Mathematics and Mathematical Applications, 2020
In this paper, we consider the initial Neumann boundary value problem for a degenerate kinetic model of Keller–Segel type. The system features a signal-dependent decreasing motility function that vanishes asymptotically, i.e., degeneracies may take place
Kentarou Fujie, Jie Jiang
semanticscholar   +1 more source

Boundedness

2022
This chapter traces the troubled fate of a particular cognitive metaphor—the mind as a container for textual mental states—in American literary history. The novels that Charles Brockden Brown wrote in 1798–99 obsessively return to a curious scenario: a chest or box is supposed to hold important papers—usually letters or diaries—but either turns out to ...
openaire   +2 more sources

Boundedness of commutators of fractional integral operators on mixed Morrey spaces

Integral transforms and special functions, 2019
In this paper, we give the necessary and sufficient conditions for the boundedness of commutators of fractional integral operators on mixed Morrey spaces. We construct the predual spaces of mixed Morrey spaces.
T. Nogayama
semanticscholar   +1 more source

Finite-time stability and finite-time boundedness of fractional order switched systems

Transactions of the Institute of Measurement and Control, 2019
Finite-time stability and finite-time boundedness of fractional order switched systems with 0 < α < 1 are investigated in this paper. First of all, by employing the average dwell time technique and Lyapunov functional method, some sufficient conditions ...
Jinxia Liang   +4 more
semanticscholar   +1 more source

Uniform Boundedness by Averaging

Acta Mathematica Hungarica, 2001
The authors study a system of functional-differential equations with infinite delay. By using Lyapunov functionals, conditions are given for uniform boundedness and uniform ultimate boundedness. The results are based on the method of finding a bound on the averaged values of the unknown solutions and the application of Jensen's inequality. A comparison
Burton, T. A., Zhang, B.
openaire   +2 more sources

Harmonizability,V-boundedness, (2,p)-boundedness of stochastic processes

Probability Theory and Related Fields, 1990
Based on the harmonic analysis study, this work gives a unified theory for some classes of discrete-time non-stationary processes. The notion of (2,p)-boundedness is introduced and the stationary processes which are (2,p)-bounded are characterized. A special form of Grothendieck's inequality leads to various characterizations of (2,p)-boundedness. Some
openaire   +2 more sources

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