Results 21 to 30 of about 10,831,046 (257)

Oscillations of equations caused by several deviating arguments [PDF]

open access: yesOpuscula Mathematica, 2019
Linear delay or advanced differential equations with variable coefficients and several not necessarily monotone arguments are considered, and some new oscillation criteria are given.
George E. Chatzarakis
doaj   +1 more source

Oscillation of differential equations with non-monotone retarded arguments [PDF]

open access: yesLMS Journal of Computation and Mathematics, 2016
Consider the first-order retarded differential equation$$\begin{eqnarray}x^{\prime }(t)+p(t)x({\it\tau}(t))=0,\quad t\geqslant t_{0},\end{eqnarray}$$where$p(t)\geqslant 0$and${\it\tau}(t)$is a function of positive real numbers such that${\it\tau}(t)\leqslant t$for$t\geqslant t_{0}$, and$\lim _{t\rightarrow \infty }{\it\tau}(t)=\infty$.
George E. Chatzarakis, Özkan Öcalan
openaire   +1 more source

Concentration-Compactness Principle for Trudinger–Moser’s Inequalities on Riemannian Manifolds and Heisenberg Groups: A Completely Symmetrization-Free Argument

open access: yesAdvanced Nonlinear Studies, 2021
The concentration-compactness principle for the Trudinger–Moser-type inequality in the Euclidean space was established crucially relying on the Pólya–Szegő inequality which allows to adapt the symmetrization argument.
Li Jungang, Lu Guozhen, Zhu Maochun
doaj   +1 more source

Non-Monotonic Inference Properties for Assumption-Based Argumentation [PDF]

open access: yes, 2015
Cumulative Transitivity and Cautious Monotonicity are widely considered as important properties of non-monotonic inference and equally as regards to information change. We propose three novel formulations of each of these properties for Assumption-Based Argumentation (ABA)—an established structured argumentation formalism, and investigate these ...
Kristijonas Cyras, Francesca Toni
openaire   +2 more sources

Oscillations in deviating difference equations using an iterative technique

open access: yesJournal of Inequalities and Applications, 2017
The paper deals with the oscillation of the first-order linear difference equation with deviating argument and nonnegative coefficients. New sufficient oscillation conditions, involving limsup, are given, which essentially improve all known results ...
George E Chatzarakis, Irena Jadlovská
doaj   +1 more source

Oscillations of differential equations generated by several deviating arguments

open access: yesAdvances in Difference Equations, 2017
Sufficient conditions, involving limsup and liminf, for the oscillation of all solutions of differential equations with several not necessarily monotone deviating arguments and nonnegative coefficients are established.
George E Chatzarakis, Tongxing Li
doaj   +1 more source

Oscillation of differential equations with non-monotone retarded arguments [PDF]

open access: yesLMS Journal of Computation and Mathematics, 2015
This paper, which was published on 3 November 2015, has been withdrawn.
openaire   +2 more sources

Explanations of Non-monotonic Inference in Admissibility-Based Abstract Argumentation

open access: yes, 2021
In this paper, we introduce a formal framework for explaining change of inference in abstract argumentation, in particular in the context of iteratively drawing inferences from a sequence of normal expansions, with a focus on admissible set-based semantics.
Kampik, Timotheus, Čyras, Kristijonas
openaire   +3 more sources

Analysis of the bulk creep influence on stress-strain curves under tensile loadings at constant rates and on Poisson's ratio evolution based on the linear viscoelasticity theory

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2019
The Boltzmann–Volterra linear constitutive equation for isotropic non-aging viscoelastic materials is studied analytically in order to elucidate its abilities to provide a qualitative simulation of rheological effects related to different behavior types ...
Andrew Vladimirovich Khokhlov
doaj   +3 more sources

Monotone Submodular Maximization over a Matroid via Non-Oblivious Local Search [PDF]

open access: yes, 2013
We present an optimal, combinatorial 1−1/e approximation algorithm for monotone submodular optimization over a matroid constraint. Compared to the continuous greedy algorithm (Calinescu, Chekuri, Pál and Vondrák, 2008), our algorithm is extremely simple ...
Filmus, Yuval   +3 more
core   +1 more source

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