Results 41 to 50 of about 83,401 (261)
Journal of Applied Mathematics, 2015 A reaction-diffusion system coupled by two equations subject to homogeneous Neumann boundary condition on one-dimensional spatial domain (0,lπ) with l>0 is considered.
Cun-Hua Zhang, Xiang-Ping Yan
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Bifurcation analysis of a three-species ecological system with time delay and harvesting
Advances in Difference Equations, 2017 This paper deals with a three-species ecological system with time delay and harvesting. Sufficient conditions guaranteeing the local stability and the occurrence of Hopf bifurcation for the system are obtained. Further, the properties of Hopf bifurcation
Zizhen Zhang, Aying Wan
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The Scientific World Journal, 2014 We introduce a time-to-build technology in a Solow model with bounded technological progress. Our analysis shows that the system may be asymptotically stable, or it can produce stability switches and Hopf bifurcations when time delay varies.
Luca Guerrini, Mauro Sodini
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Hopf bifurcation and chaos control for a Leslie–Gower type generalist predator model
Advances in Difference Equations, 2019 This paper is concerned with chaos control and bifurcations of the Leslie–Gower type generalist predator model in a tri-trophic food web system with the time-delayed feedback control.
Qin Chen, Jianguo Gao
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Dynamics and Chaos Control for a Discrete-Time Lotka-Volterra Model
IEEE Access, 2020 Bifurcation theory (center manifold and Ljapunov-Schmidt reduction, normal form theory, universal unfolding, calculation of bifurcation diagrams) has become an important and very useful means in the solution of nonlinear stability problems in many ...
Youping Lin +4 more
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Index theorem for topological excitations on R^3 * S^1 and Chern-Simons theory
, 2008 We derive an index theorem for the Dirac operator in the background of various topological excitations on an R^3 \times S^1 geometry. The index theorem provides more refined data than the APS index for an instanton on R^4 and reproduces it in ...
A.I. Vainshtein +12 more
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Dynamical system analysis of quintom dark energy model
European Physical Journal C: Particles and Fields, 2018 The present work deals with dynamical system analysis of a quintom model of dark energy. By suitable transformation of variables the Einstein field equations are converted to an autonomous system.
Sudip Mishra, Subenoy Chakraborty
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Nanothermometry in Living Cells: Physical Limits, Conceptual and Material Challenges
Advanced Functional Materials, EarlyView.Heat and temperature are fundamental to life. When nanothermometers began probing regions as small as a living cell, they triggered controversial claims of large intracellular temperature gradients. We review physical constraints energy‐conservation, entropy production, thermodynamic fluctuations, and molecular dynamics.
Taras Plakhotnik
wiley +1 more source
A Center-Unstable Manifold Theorem for Parametrically Excited Surface Waves
SIAM Journal on Mathematical Analysis, 1996 Summary: When fluid in a rectangular tank sits upon a platform which is oscillating with sufficient amplitude, surface waves appear in the ``Faraday resonance.'' Scientists and engineers have done bifurcation analyses which assume that there is a center manifold theorem for Xiao-Biao Lin's model in which potential flow is assumed, but an artificial ...
openaire +4 more sources
Evaluation of the ADM mass and center of mass via the Ricci tensor
, 2015 We prove directly without using a density theorem that (i) the ADM mass defined in the usual way on an asymptotically flat manifold is equal to the mass defined intrinsically using Ricci tensor; (ii) the Hamiltonian formulation of center of mass and the ...
Miao, Pengzi, Tam, Luen-Fai
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