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Bibliothèque cantonale jurassienne

Palaeoecology, palaeobiogeography : session 3 : 7th International Congress on the Jurassic System, September 6-18, 2006, Kraków, Poland

In: Field trip guide book of the 7th International Congress on the Jurassic system, 2006, p. 111-139

Consortium of Swiss Academic Libraries

Invariant measures of homeomorphisms and applications to the stability of an hyperbolic PDE

Aassila, Mohammed

In: Bulletin of the Brazilian Mathematical Society, New Series, 2004, vol. 35, no. 1, p. 83-122

Université de Fribourg

Existence, uniqueness and stability analysis of allelopathic stimulatory phytoplankton model

Abbas, Syed ; Banerjee, Malay ; Hungerbühler, Norbert

In: Journal of Mathematical Analysis and Applications, 2010, p. -

In this paper we consider the two species competitive delay plankton allelopathy stimulatory model system. We show the existence and uniqueness of the solution of the deterministic model. Moreover, we study the persistence of the model and the stability properties of its equilibrium points. We illustrate the theoretical results by some numerical simulations.

Bibliothèque cantonale jurassienne

Late Jurassic to earliest Cretaceous palaeoclimatic evolution of the southern North Sea

Abbink, Oscar

In: Global and planetary change : a daughter journal of palaeogeography, palaeoclimatology, palaeoecology, 2001, vol. 30, p. 231

Université de Fribourg

The linear barycentric rational method for a class of delay Volterra integro-differential equations

Abdi, Ali ; Berrut, Jean-Paul ; Hosseini, Seyyed Ahmad

In: Journal of Scientific Computing, 2018, vol. 75, no. 3, p. 1757-1775

A method for solving delay Volterra integro-differential equations is introduced. It is based on two applications of linear barycentric rational interpolation, barycentric rational quadrature and barycentric rational finite differences. Its zero–stability and convergence are studied. Numerical tests demonstrate the excellent agreement of our implementation with the predicted convergence...

Université de Fribourg

Nondiffusive fluxes in a Brownian system with Lorentz force

Abdoli, I. ; Vuijk, H. D. ; Sommer, J. U. ; Brader, Joseph M. ; Sharma, Abhinav

In: Physical Review E, 2020, vol. 101, no. 1, p. 012120

The Fokker-Planck equation provides a complete statistical description of a particle undergoing random motion in a solvent. In the presence of Lorentz force due to an external magnetic field, the Fokker-Planck equation picks up a tensorial coefficient, which reflects the anisotropy of the particle's motion. This tensor, however, cannot be interpreted as a diffusion tensor; there are...

Université de Fribourg

Correlations in multithermostat Brownian systems with Lorentz force

Abdoli, Iman ; Kalz, Erik ; Vuijk, Hidde D. ; Wittmann, René ; Sommer, Jens-Uwe ; Brader, Joseph M. ; Sharma, Abhinav

In: New Journal of Physics, 2020, vol. 22, no. 9, p. 093057

We study the motion of a Brownian particle subjected to Lorentz force due to an external magnetic field. Each spatial degree of freedom of the particle is coupled to a different thermostat. We show that the magnetic field results in correlation between different velocity components in the stationary state. Integrating the velocity autocorrelation matrix, we obtain the diffusion matrix that...