Results 41 to 50 of about 45,726 (269)
Thin‐layer inertial effects in plasticity and dynamics in the Prandtl problem [PDF]
, 2019 Especially in metal forming, large plastic deformation occurs in thin plates. The problem of compressing dies is analyzed to evaluate the spreading of a thin layer in between. The velocity of dies is a given function in time so that the kinematics of the
Abali, Bilen Emek +2 more
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Asymptotically symmetric spaces with hereditarily non-unique spreading models
Proceedings of the American Mathematical Society, 2020 We examine a variant of a Banach space $\mathfrak{X}_{0,1}$ defined by Argyros, Beanland, and the second named author that has the property that it admits precisely two spreading models in every infinite dimensional subspace. We prove that this space is asymptotically symmetric and thus it provides a negative answer to a problem of Junge, the first ...
Kutzarova, Denka, Motakis, Pavlos
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Asymptotic behavior of solutions of a Fisher equation with free boundaries and nonlocal term
Electronic Journal of Qualitative Theory of Differential Equations, 2019 We study the asymptotic behavior of solutions of a Fisher equation with free boundaries and the nonlocal term (an integral convolution in space). This problem can model the spreading of a biological or chemical species, where free boundaries represent ...
Jingjing Cai +3 more
doaj +1 more source
Minimal wave speed of competitive lattice dynamical systems with delays
Advances in Difference Equations, 2018 This paper deals with the minimal wave speed of delayed lattice dynamical systems. We obtain the minimal wave speed by presenting the existence and nonexistence of traveling wave solutions, which completes the earlier results.
Shuxia Pan, Hong-Bo Shi
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Drop spreading and drifting on a spatially heterogeneous film: capturing variability with asymptotics and emulation [PDF]
, 2018 A liquid drop spreading over a thin heterogeneous precursor film (such as an inhaled droplet on the mucus-lined wall of a lung airway) will experience perturbations in shape and location as its advancing contact line encounters regions of low or high ...
Coveney, Sam +2 more
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Asymptotic spreading of time periodic competition diffusion systems
Discrete & Continuous Dynamical Systems - B, 2018 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bo, Wei-Jian, Lin, Guo
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Stability Analysis of a Rumor-Spreading Model with Two Time Delays and Saturation Effect
MathematicsTime delay and nonlinear incidence functions have a significant effect on rumor-spreading. In this article, a rumor-spreading model with two unequal time delays and a saturation effect is proposed.
Chunfeng Wei +4 more
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A diffusive stage-structured model with a free boundary
Boundary Value Problems, 2018 In this paper we mainly consider a free boundary problem for a single-species model with stage structure in a radially symmetric setting. In our model, the individuals of a new or invasive species are classified as belonging either to the immature or to ...
Jingfu Zhao +2 more
doaj +1 more source
Nonlinear waves in disordered chains: probing the limits of chaos and spreading
, 2011 We probe the limits of nonlinear wave spreading in disordered chains which are known to localize linear waves. We particularly extend recent studies on the regimes of strong and weak chaos during subdiffusive spreading of wave packets [EPL {\bf 91 ...
Bodyfelt, J. D. +4 more
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International Journal of Adaptive Control and Signal Processing, EarlyView.This paper proposes two projector‐based Hopfield neural network (HNN) estimators for online, constrained parameter estimation under time‐varying data, additive disturbances, and slowly drifting physical parameters. The first is a constraint‐aware HNN that enforces linear equalities and inequalities (via slack neurons) and continuously tracks the ...
Miguel Pedro Silva
wiley +1 more source