Results 51 to 60 of about 46,976 (223)

Concentration-compactness at the mountain pass level in semilinear elliptic problems

open access: yes, 2007
The concentration compactness framework for semilinear elliptic equations without compactness, set originally by P.-L.Lions for constrained minimization in the case of homogeneous nonlinearity, is extended here to the case of general nonlinearities in ...
TIntarev, Kyril
core   +2 more sources

Spectral asymptotics for compact self-adjoint Hankel operators [PDF]

open access: yesJournal of Spectral Theory, 2016
We describe large classes of compact self-adjoint Hankel operators whose eigenvalues have power asymptotics and obtain explicit expressions for the coefficient in front of the leading term. The results are stated both in the discrete and continuous representations for Hankel operators.
Alexander Pushnitski, Dmitri Yafaev
openaire   +3 more sources

Higher algebraic structures in Hamiltonian Floer theory I

open access: yes, 2019
This is the first of two papers devoted to showing how the rich algebraic formalism of Eliashberg-Givental-Hofer's symplectic field theory (SFT) can be used to define higher algebraic structures on the symplectic cohomology of open symplectic manifolds ...
Fabert, Oliver
core   +3 more sources

Some remarks on a second order evolution equation

open access: yesElectronic Journal of Differential Equations, 1998
We prove the strong asymptotic stability of solutions to a second order evolution equation when the LaSalle's invariance principle cannot be applied due to the lack of monotonicity and compactness.
Mohammed Aassila
doaj  

The structure and asymptotic behavior of polynomially compact operators [PDF]

open access: yesProceedings of the American Mathematical Society, 1970
A. R. Bernstein and A. Robinson proved that every polynomially compact operator in Hilbert space has nontrivial invariant subspaces. This paper gives a structure theorem for these operators. We show that a polynomially compact operator is the finite sum of translates of operators which have the property that a finite power of the operator is compact ...
openaire   +2 more sources

Upper Semicontinuity of Random Attractors for Nonautonomous Stochastic Reversible Selkov System with Multiplicative Noise

open access: yesAdvances in Mathematical Physics, 2019
In this paper, the existence of random attractors for nonautonomous stochastic reversible Selkov system with multiplicative noise has been proved through Ornstein-Uhlenbeck transformation.
Chunxiao Guo, Yanfeng Guo, Xiaohan Li
doaj   +1 more source

The Weinstein Conjecture for Planar Contact Structures in Dimension Three

open access: yes, 2005
In this paper we describe a general strategy for approaching the Weinstein conjecture in dimension three. We apply this approach to prove the Weinstein conjecture for a new class of contact manifolds (planar contact manifolds).
Abbas, Casim   +2 more
core   +2 more sources

Compactness Properties and Asymptotics of Strongly Coupled Systems

open access: yesJournal of Mathematical Analysis and Applications, 1994
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Weighted differentiation composition operators from the logarithmic Bloch space to the weighted-type space

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2016
The boundedness of the weighted differentiation composition opera- tor from the logarithmic Bloch space to the weighted-type space is characterized in terms of the sequence (zn)n∈N0.
Li Songxiao, Stević Stevo
doaj   +1 more source

Long Term Behavior for a Class of Stochastic Delay Lattice Systems in Xρ Space

open access: yesDiscrete Dynamics in Nature and Society, 2020
In this paper, we focus on the asymptotic behavior of solutions to stochastic delay lattice equations with additive noise and deterministic forcing. We first show the existence of a continuous random dynamical system for the equations.
Yijin Zhang, Zongbing Lin
doaj   +1 more source

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