Bernt Wennberg
Chalmers University of Technology
72 Papers
468 Citations
Bernt Wennberg is an academic researcher from Chalmers University of Technology. The author has contributed to research in topics: Boltzmann equation & Nonlinear system. The author has an hindex of 26, co-authored 71 publications. Previous affiliations of Bernt Wennberg include University of Gothenburg.
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Papers
Metrics for probability distributions and the trend to equilibrium for solutions of the Boltzmann equation
TL;DR: In this article, the trend to equilibrium of solutions to the spacehomogeneous Boltzmann equation for Maxwellian molecules with angular cutoff as well as with infinite-range forces is investigated. And the relation between several metrics for spaces of probability distributions, and the relation this to the Boltzman equation, by proving that Fourier-transformed solutions are at least as regular as the Fourier transform of the initial data, is established.
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Brief paper: State elimination and identifiability of the delay parameter for nonlinear time-delay systems
Milena Anguelova,Bernt Wennberg +1 more
TL;DR: The identifiability of the delay parameter for nonlinear systems with a single constant time delay is analyzed and the existence of input-output equations is shown and the ident ifiability is shown not to be directly related to the well-characterized identifiable/observability of the other system parameters/states.
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On the distribution of free path lengths for the periodic Lorentz gas. II
TL;DR: In this article, Bourgain et al. showed that the linear Boltzmann type transport equation is inappropriate to describe the limit of the periodic Lorentz gas, at variance with the usual case of a Poisson distribution of scatterers treated in [G. Gallavotti (1972).
Kinetic limits for pair-interaction driven master equations and biological swarm models
TL;DR: In this article, the authors consider a class of stochastic processes modeling binary interactions in an N-particle system and prove a propagation of chaos result for this class of master equations which generalizes Mark Kac's well-known result for the Kac model.
On moments and uniqueness for solutions to the space homogeneous Boltzmann equation
TL;DR: In this article, an alternative proof of Desvillettes' result was presented, together with a proof that the result does not hold for pseudo-Maxwellian molecules, and two implications of the result were discussed: an analogous L p-result and an improved uniqueness result.
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