Results 111 to 120 of about 390,420 (212)

Global Existence and Uniqueness of Bohmian Trajectories

open access: yes, 1996
It is shown that Bohmian mechanics is internally consistent in the sense that the equations of motion typically have global solutions despite the fact that the velocity field is singular at the nodes of the wave function and at other points. This result is fundamental for the derivation of the quantum formalism.
openaire   +2 more sources

Global Existence and Exponential Stability of Convection

open access: yesJournal of Mathematical Analysis and Applications, 1995
The interior convection in the Boussinesq approximation is studied for a bounded domain \(\Omega\subset \mathbb{R}^3\), occupied by an incompressible, viscous fluid, with a smooth boundary \(\Gamma\). It is studied the gravitational convection when the fluid is heated at a part \(\Gamma_0\subset\Gamma\) of the boundary.
openaire   +1 more source

Global Existence and Decay Estimates for a Viscoelastic Petrovsky–Kirchhoff-Type Equation with a Delay Term

open access: yesAxioms
In this paper, we consider a viscoelastic Kirchhoff equation with a delay term in the internal feedback. By using the Faedo–Galerkin approximation method, we prove the well posedness of the global solutions.
Noureddine Sebih   +3 more
doaj   +1 more source

CO-EXISTENCE COSTS UNDER GERMAN REGULATION - CASE STUDIES OF BT MAIZE

open access: yes
Paper prepared for presentation at the 10th ICABR International Conference on Agricultural Biotechnology: Facts, Analysis and Policies Ravello (Italy), June 29th to July 2nd, 2006Co-existence measure, GMO, Bt maize, GIS, Germany, Agricultural and Food ...
Menrad, Klaus, Reitmeier, Daniela
core  

Critical parameter equations for degenerate parabolic equations coupled via nonlinear boundary flux

open access: yesBoundary Value Problems, 2011
This paper deals with the critical parameter equations for a degenerate parabolic system coupled via nonlinear boundary flux. By constructing the self-similar supersolution and subsolution, we obtain the critical global existence parameter equation.
Xu Si, Song Zifen
doaj  

Non-existence of global classical solutions to 1D compressible heat-conducting micropolar fluid

open access: yes
summary:We study the non-existence of global classical solutions to 1D compressible heat-conducting micropolar fluid without viscosity. We first show that the life span of the classical solutions with decay at far fields must be finite for the 1D Cauchy ...
Dong, Jianwei, Zhang, Litao, Zhu, Junhui
core   +1 more source

The Global Existence of Nonlinear Evolutionary Equation with Small Delay

open access: yes, 2020
We investigate the global existence of the delayed nonlinear evolutionary equation ∂ t u Au f u t , u t−τ . Our work space is the fractional powers space X α . Under the fundamental theorem on sectorial operators, we make use of the fixed-point principle
Xunwu Yin
core  

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