Results 21 to 30 of about 512 (44)

Decay of solutions of a system of nonlinear Klein‐Gordon equations

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 9, Issue 3, Page 471-483, 1986., 1986
We study the asymptotic behavior in time of the solutions of a system of nonlinear Klein‐Gordon equations. We have two basic results: First, in the L∞(ℝ3) norm, solutions decay like 0(t−3/2) as t → +∞ provided the initial data are sufficiently small. Finally we prove that finite energy solutions of such a system decay in local energy norm as t → +∞.
José Ferreira, Gustavo Perla Menzala
wiley   +1 more source

Kirchhoff equations from quasi-analytic to spectral-gap data

open access: yes, 2010
In a celebrated paper (Tokyo J. Math. 1984) K. Nishihara proved global existence for Kirchhoff equations in a special class of initial data which lies in between analytic functions and Gevrey spaces.
Ghisi, Marina, Gobbino, Massimo
core   +1 more source

On cavitation in Elastodynamics [PDF]

open access: yes, 2012
Motivated by the works of Ball (1982) and Pericak-Spector and Spector (1988), we investigate singular solutions of the compressible nonlinear elastodynamics equations.
Giesselmann, Jan   +1 more
core  

Blowup and Global Solutions of a Fourth‐Order Parabolic Equation With Variable Exponent Logarithmic Nonlinearity

open access: yesJournal of Function Spaces, Volume 2024, Issue 1, 2024.
In this work, we deal with a fourth‐order parabolic equation with variable exponent logarithmic nonlinearity. We obtain the global existence and blowup solutions using the energy functional and potential well method.
Gülistan Butakın   +3 more
wiley   +1 more source

Quantization of energy and weakly turbulent profiles of solutions to some damped second-order evolution equations

open access: yesAdvances in Nonlinear Analysis, 2017
We consider a second-order equation with a linear “elastic” part and a nonlinear damping term depending on a power of the norm of the velocity. We investigate the asymptotic behavior of solutions, after rescaling them suitably in order to take into ...
Ghisi Marina   +2 more
doaj   +1 more source

Exponential energy decay of solutions for a system of viscoelastic wave equations of Kirchhoff type with strong damping

open access: yes, 2011
The initial boundary value problem for a system of viscoelastic wave equations of Kirchhoff type with strong damping is considered. We prove that, under suitable assumptions on relaxation functions and certain initial data, the decay rate of the ...
Agre K   +14 more
core   +1 more source

Harmonic coordinates in the string and membrane equations

open access: yes, 2010
In this note, we first show that the solutions to Cauchy problems for two versions of relativistic string and membrane equations are diffeomorphic. Then we investigate the coordinates transformation presented in Ref. [9] (see (2.20) in Ref.
Chun-Lei He   +2 more
core   +1 more source

A Remark on Unconditional Uniqueness in the Chern-Simons-Higgs Model [PDF]

open access: yes, 2013
The solution of the Chern-Simons-Higgs model in Lorenz gauge with data for the potential in $H^{s-1/2}$ and for the Higgs field in $H^s \times H^{s-1}$ is shown to be unique in the natural space $C([0,T];H^{s-1/2} \times H^s \times H^{s-1})$ for $s \ge 1$
Daniel   +2 more
core  

Periodic solutions of forced Kirchhoff equations

open access: yes, 2007
We consider Kirchhoff equations for vibrating bodies in any dimension in presence of a time-periodic external forcing with period 2pi/omega and amplitude epsilon, both for Dirichlet and for space-periodic boundary conditions.
Baldi, Pietro
core   +3 more sources

Mathematical model of the impact of chemotherapy and antiangiogenic therapy on drug resistance in glioma growth

open access: yesComputational and Mathematical Biophysics
This study presents a mathematical model of glioma growth dynamics with drug resistance, capturing interactions among five cell populations – glial cells, sensitive and resistant glioma cells, endothelial cells, and neurons – alongside chemotherapy and ...
Hanum Latifah   +2 more
doaj   +1 more source

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