Results 11 to 20 of about 94 (34)

Radial solutions of inhomogeneous fourth order elliptic equations and weighted Sobolev embeddings

open access: yesAdvances in Nonlinear Analysis, 2015
We deal with a class of inhomogeneous elliptic problems involving the biharmonic operator Δ2u + V(|x|)|u|q-2u = Q(|x|)f(u), u ∈ D02,2(ℝN), where Δ2 is the biharmonic operator and V, Q are singular continuous functions.
Demarque Reginaldo, Miyagaki Olimpio H.
doaj   +1 more source

Tensor-based multiscale method for diffusion problems in quasi-periodic heterogeneous media [PDF]

open access: yes, 2018
This paper proposes to address the issue of complexity reduction for the numerical simulation of multiscale media in a quasi-periodic setting. We consider a stationary elliptic diffusion equation defined on a domain $D$ such that $\overline{D}$ is the ...
Ayoul-Guilmard, Quentin   +2 more
core   +3 more sources

Regularity for Maxwell eigenproblems in photonic crystal fibre modelling [PDF]

open access: yes, 2015
International audienceThe convergence behaviour and the design of numerical methods for modelling the flow of light in photonic crystal fibres depend critically on an understanding of the regularity of solutions to time-harmonic Maxwell equations in a ...
Dauge, Monique   +2 more
core   +3 more sources

A free boundary tumor model with time dependent nutritional supply [PDF]

open access: yes, 2020
A non-autonomous free boundary model for tumor growth is studied. The model consists of a nonlinear reaction diffusion equation describing the distribution of vital nutrients in the tumor and a nonlinear integro-differential equation describing the ...
Caraballo Garrido, Tomás   +3 more
core  

Whitham's Method and Dubrovin-Novikov Bracket in Single-Phase and Multiphase Cases [PDF]

open access: yes, 2012
In this paper we examine in detail the procedure of averaging of the local field-theoretic Poisson brackets proposed by B.A. Dubrovin and S.P. Novikov for the method of Whitham.
Maltsev, Andrei Ya.
core   +5 more sources

ComPhy: Prokaryotic Composite Distance Phylogenies Inferred from Whole-Genome Gene Sets [PDF]

open access: yes, 2009
doi:10.1186/1471-2105-10-S1-S5With the increasing availability of whole genome sequences, it is becoming more and more important to use complete genome sequences for inferring species phylogenies.
Cai, Zhipeng   +4 more
core   +2 more sources

Almost periodic solutions of periodic linear partial functional differential equations

open access: yes, 2018
We study conditions for the abstract periodic linear functional differential equation $\dot{x}=Ax+F(t)x_t+f(t)$ to have almost periodic with the same structure of frequencies as $f$.
Luong, Vu Trong, Van Minh, Nguyen
core   +1 more source

Almost periodic mild solutions of a class of partial functional differential equations [PDF]

open access: yes, 1998
We study the existence of almost periodic mild solutions of a class of partial functional differential equations via semilinear almost periodic abstract functional differential equations of the form (*)                                                     
Bernd Aulbach, Nguyen Van Minh
core   +3 more sources

Traveling waves for the cubic Szego equation on the real line

open access: yes, 2010
We consider the cubic Szego equation i u_t=Pi(|u|^2u) on the real line, with solutions in the Hardy space on the upper half-plane, where Pi is the Szego projector onto the non-negative frequencies. This equation was recently introduced by P. Gerard and S.
Pocovnicu, Oana
core   +1 more source

Stepanov-like pseudo-almost automorphic solutions of infinite class in the alpha-norm under the light of measure theory

open access: yesNonautonomous Dynamical Systems
In this article, we study weighted Stepanov-like pseudo-almost automorphic functions with infinite delay using measure theory. We present a new concept of weighted ergodic functions, which is more general than the classical one.
Mbainadji Djendode   +2 more
doaj   +1 more source

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