Results 31 to 40 of about 19,755 (210)

Nonlinear effects in the regularity problems for infinite dimensional evolutions of unbounded spin systems

Condensed Matter Physics, 2006
We study the regularity problems for unbounded spin systems of anharmonic oscillators, that approximate multi-dimensional Euclidean field theories. The main attention is paid to the effect of anharmonism on the C∞-regularity properties of evolutional ...
Alexander Val. Antoniouk, Alexandra Vict. Antoniouk   +1 more
doaj   +1 more source

Some qualitative properties of the solutions of the Magnetohydrodynamic equations for nonlinear bipolar fluids

, 2014
In this article we study the long-time behaviour of a system of nonlinear Partial Differential Equations (PDEs) modelling the motion of incompressible, isothermal and conducting modified bipolar fluids in presence of magnetic field.
A.V. Babin, B. Desjardins, D. Biskamp, F. Bloom, G. Duvaut, H. Bellout, H. Bellout, H. Bellout, H. Bellout, H. Bellout, J. Freshe, J. Malek, J. Málek, J. Málek, J. Nečas, J. Nečas, J.-F. Gerbeau, J.-F. Gerbeau, J.-L. Lions, J.C. Robinson, L. Stupyalis, M. Sermange, M.D. Gunzburger, M.D. Gunzburger, O.A. Ladyzhensakya, O.A. Ladyzhensakya, O.A. Ladyzhenskaya, P.A. Razafimandimby, Paul André Razafimandimby, Q. Du, R. Temam, R. Temam, S. Chandrasekhar, V.N. Samokhin, V.N. Samokhin, V.N. Samokhin, V.N. Samokhin, V.V. Chepyzhov, V.V. Chepyzhov, V.V. Chepyzhov   +39 more
core   +1 more source

Boundary controllability of impulsive nonlinear fractional delay integro-differential system

Cogent Engineering, 2016
By using the strongly continuous semigroup theory and the Banach contraction principle, we study the boundary controllability of time varying delay impulsive nonlinear fractional integrodifferential system in Banach spaces.
Hamdy M. Ahmed
doaj   +1 more source

Statistical Thermodynamics of General Minimal Diffusion Processes: Constuction, Invariant Density, Reversibility and Entropy Production

, 2001
The solution to nonlinear Fokker-Planck equation is constructed in terms of the minimal Markov semigroup generated by the equation. The semigroup is obtained by a purely functional analytical method via Hille-Yosida theorem. The existence of the positive
Qian, Hong, Qian, Min, Tang, Xiang
core   +1 more source

Nonlinear submeans on semigroups

Topological Methods in Nonlinear Analysis, 2003
Let \(S\) be a semigroup and \(X\) be a subspace of \(l^\infty(S)\) containing constants, where \(l^\infty(S)\) denotes the Banach space of bounded real-valued functions on \(S\) with supremum norm. A continuous linear functional \(\mu\) on \(X\) is called a {mean} if \(\| \mu\| =\mu(1)=1\).
W.Takahashi, A.T.Lau
openaire   +4 more sources

Blow-Up of Solution of Lamé Wave Equation with Fractional Damping and Logarithmic Nonlinearity Source Terms

Mathematics, 2023
In this work, by the use of a semigroup theory approach, we provide a global solution for an initial boundary value problem of the wave equation with logarithmic nonlinear source terms and fractional boundary dissipation.
Amina Benramdane, Nadia Mezouar, Fatna Bensaber, Salah Boulaaras, Rashid Jan   +4 more
doaj   +1 more source

Stability of limit regimes in general reaction-diffusion type systems

Науковий вісник Ужгородського університету. Серія: Математика і інформатика, 2022
In this paper, we consider the stability of limit regimes for a general class of nonlinear distributed mathematical models named Reaction-Diffusion models. RD systems naturally arise in many applications.
О. В. Капустян, Т. В. Юсипів   +1 more
doaj   +1 more source

Nonlinear Schroedinger equation with two symmetric point interactions in one dimension

, 2010
We consider a time-dependent one-dimensional nonlinear Schroedinger equation with a symmetric potential double well represented by two delta interactions.
Abramowitz M, Adami R, Albeverio S, Albeverio S, Andrea Sacchetti, Cazenave T, Costin O, Costin O, Costin O Lebowitz J L Stucchio C, Gaveau B, Hynek Kovařík, Reed M, Schulman L S, Teschl G, Witthaut D   +14 more
core   +1 more source

Stability of $L^\infty$ solutions for hyperbolic systems with coinciding shocks and rarefactions [PDF]

, 2000
We consider a hyperbolic system of conservation laws u_t + f(u)_x = 0 and u(0,\cdot) = u_0, where each characteristic field is either linearly degenerate or genuinely nonlinear.
Baiti Paolo, Bianchini Stefano, Bressan Alberto, Bressan Alberto, Glimm James, Lewicka Marta, Serre Denis, Stefano Bianchini   +7 more
core   +2 more sources

Advanced control of non‐isothermal axial dispersion tubular reactors with recycle‐induced state delay

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract We develop a delay‐aware estimation and control framework for a non‐isothermal axial dispersion tubular reactor modelled as a coupled parabolic‐hyperbolic PDE system with recycle‐induced state delay. The infinite‐dimensional dynamics are preserved without spatial discretization by representing the delay as a transport PDE and adopting a late ...
Behrad Moadeli, Stevan Dubljevic
wiley   +1 more source