Numerical study of a descending sphere in a low Reynolds number strongly stratified fluid.
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Displaying 1141 – 1160 of 1854
Numerical study of the stopping of aura during migraine
C. Pocci, A. Moussa, F. Hubert, G. Chapuisat (2010)
ESAIM: Proceedings
This work is devoted to the study of migraine with aura in the human brain. Following [6], we class migraine as a propagation of a wave of depolarization through the cells. The mathematical model used, based on a reaction-diffusion equation, is briefly presented. The equation is considered in a duct containing a bend, in order to model one of the numerous circumvolutions of the brain. For a wide set of parameters, one can establish the existence...
Nutrient-phytoplankton-zooplankton interaction with variable yields
Joydeb Bhattacharyya, Samares Pal (2013)
Applicationes Mathematicae
A three dimensional predator-prey-resource model is proposed and analyzed to study the dynamics of the system with resource-dependent yields of the organisms. Our analysis leads to different thresholds in terms of the model parameters acting as conditions under which the organisms associated with the system cannot thrive even in the absence of predation. Local stability of the system is obtained in the absence of one or more of the predators and in the presence of all the predators. Under appropriate...
O biológii, matematike a výpočtoch - rozhovor s A. Lindenmayerom
Jozef Kelemen, Alica Kelemenová (1986)
Pokroky matematiky, fyziky a astronomie
O preferenci léčebných metod
Pavel Vítek (1968)
Kybernetika
O teorii katastrof
Ivan Vlček, Józef Zieleniec (1977)
Pokroky matematiky, fyziky a astronomie
Observations on the Pathophysiology and Mechanisms for Cyclic Neutropenia
C. Colijn, D. C. Dale, C. Foley, M. C. Mackey (2010)
Mathematical Modelling of Natural Phenomena
We review the basic pathology of cyclical neutropenia in both humans and the grey collie, and examine the role that mathematical modeling of hematopoietic cell production has played in our understanding of the origins of this fascinating dynamical disease.
Observers for Canonic Models of Neural Oscillators
D. Fairhurst, I. Tyukin, H. Nijmeijer, C. van Leeuwen (2010)
Mathematical Modelling of Natural Phenomena
We consider the problem of state and parameter estimation for a class of nonlinear oscillators defined as a system of coupled nonlinear ordinary differential equations. Observable variables are limited to a few components of state vector and an input signal. This class of systems describes a set of canonic models governing the dynamics of evoked potential in neural membranes, including Hodgkin-Huxley, Hindmarsh-Rose, FitzHugh-Nagumo, and Morris-Lecar...
Od Cavalieriho principu k tomografu
V. M. Buchštaber, Simon G. Gindikin (1984)
Pokroky matematiky, fyziky a astronomie
Odd-vertex-degree trees maximizing Wiener index
Boris Furtula (2013)
Kragujevac Journal of Mathematics
On a Caginalp phase-field system with a logarithmic nonlinearity
Charbel Wehbe (2015)
Applications of Mathematics
We consider a phase field system based on the Maxwell Cattaneo heat conduction law, with a logarithmic nonlinearity, associated with Dirichlet boundary conditions. In particular, we prove, in one and two space dimensions, the existence of a solution which is strictly separated from the singularities of the nonlinear term and that the problem possesses a finite-dimensional global attractor in terms of exponential attractors.
On a certain model of an epidemic
R. Bartoszyński (1972)
Applicationes Mathematicae
On a certain nonlinear problem for two-dimensional differential systems
Ivan Kiguradze, Irena Rachůnková (1980)
Archivum Mathematicum
On a constrained minimization problem arising in hemodynamics
João Janela, Adélia Sequeira (2008)
Banach Center Publications
Experimental evidence collected over the years shows that blood exhibits non-Newtonian characteristics such as shear-thinning, viscoelasticity, yield stress and thixotropic behaviour. Under certain conditions these characteristics become relevant and must be taken into consideration when modelling blood flow. In this work we deal with incompressible generalized Newtonian fluids, that account for the non-constant viscosity of blood, and present a new numerical method to handle fluid-rigid body interaction...
On a discrete epidemic model.
Stević, Stevo (2007)
Discrete Dynamics in Nature and Society
On a Fokker-Planck equation arising in population dynamics.
Thierry Goudon, Mazen Saad (1998)
Revista Matemática Complutense
On a functional equation with derivative and symmetrization
Adam Bobrowski, Małgorzata Kubalińska (2006)
Annales Polonici Mathematici
We study existence, uniqueness and form of solutions to the equation where α, β, γ and f are given, and stands for the even part of a searched-for differentiable function g. This equation emerged naturally as a result of the analysis of the distribution of a certain random process modelling a population genetics phenomenon.
On a generalized discrete ratio-dependent predator-prey system.
Fan, Yong-Hong, Wang, Lin-Lin (2009)
Discrete Dynamics in Nature and Society
On a generalized time-varying SEIR epidemic model with mixed point and distributed time-varying delays and combined regular and impulsive vaccination controls.
De La Sen, M., Agarwal, Ravi P., Ibeas, A., Alonso-Quesada, S. (2010)
Advances in Difference Equations [electronic only]
On a geometrical study of population ecosystems.
Postolache, Mihai, Mocioalcă, Oana (1997)
Balkan Journal of Geometry and its Applications (BJGA)