Results 31 to 40 of about 7,794,861 (172)

Nonexistence of Kneser solution for third order nonlinear neutral delay differential equations

open access: yesJournal of Physics: Conference Series, 2021
Abstract The achieved sufficient conditions for nonexistence of so-called Kneser solutions are based on the new comparison principles, which help us decrease the problem of the wavering between the third and first-order equations. Examples are given to prove the significance of new theorems.
R. Elayaraja   +2 more
openaire   +1 more source

Language Modeling with Power Low Rank Ensembles [PDF]

open access: yes, 2014
We present power low rank ensembles (PLRE), a flexible framework for n-gram language modeling where ensembles of low rank matrices and tensors are used to obtain smoothed probability estimates of words in context.
Dyer, Chris   +3 more
core   +2 more sources

Existence, uniqueness and qualitative properties of heteroclinic solutions to nonlinear second-order ordinary differential equations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2021
By means of the shooting method together with the maximum principle and the Kneser–Hukahara continuum theorem, the authors present the existence, uniqueness and qualitative properties of solutions to nonlinear second-order boundary value problem on the ...
Minghe Pei, Libo Wang, Xuezhe Lv
doaj   +1 more source

Handling Massive N-Gram Datasets Efficiently [PDF]

open access: yes, 2018
This paper deals with the two fundamental problems concerning the handling of large n-gram language models: indexing, that is compressing the n-gram strings and associated satellite data without compromising their retrieval speed; and estimation, that is
Pibiri, Giulio Ermanno   +1 more
core   +3 more sources

Kneser’s theorem for weak solutions of an integral equation with weakly singular kernel [PDF]

open access: yesPublications de l'Institut Mathematique, 2005
We prove that the set of all weak solutions of the Volterra integral equation (1) is nonempty, compact and connected.
Dutkiewicz, Aldona, Szufla, Stanisław
openaire   +2 more sources

Some quadratic equations in the free group of rank 2 [PDF]

open access: yes, 2008
For a given quadratic equation with any number of unknowns in any free group F, with right-hand side an arbitrary element of F, an algorithm for solving the problem of the existence of a solution was given by Culler.
Goncalves, Daciberg   +2 more
core   +3 more sources

Prodsimplicial-Neighborly Polytopes [PDF]

open access: yes, 2009
Simultaneously generalizing both neighborly and neighborly cubical polytopes, we introduce PSN polytopes: their k-skeleton is combinatorially equivalent to that of a product of r simplices.
B. Matschke   +15 more
core   +11 more sources

Third-Order Neutral Delay Differential Equations: New Iterative Criteria for Oscillation

open access: yesJournal of Function Spaces, 2020
This study is aimed at developing new criteria of the iterative nature to test the oscillation of neutral delay differential equations of third order.
Osama Moaaz   +2 more
doaj   +1 more source

On bounding the bandwidth of graphs with symmetry [PDF]

open access: yes, 2015
We derive a new lower bound for the bandwidth of a graph that is based on a new lower bound for the minimum cut problem. Our new semidefinite programming relaxation of the minimum cut problem is obtained by strengthening the known semidefinite ...
Sotirov, Renata, van Dam, Edwin R.
core   +3 more sources

Attractors for Nonautonomous Parabolic Equations without Uniqueness

open access: yesInternational Journal of Differential Equations, 2010
Using the theory of uniform global attractors of multivalued semiprocesses, we prove the existence of a uniform global attractor for a nonautonomous semilinear degenerate parabolic equation in which the conditions imposed on the nonlinearity provide the ...
Cung The Anh, Nguyen Dinh Binh
doaj   +1 more source

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