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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

Consortium of Swiss Academic Libraries

Stability and asymptotic behaviour of solutions of the heat equation

Aassila, Mohammed

In: IMA Journal of Applied Mathematics, 2004, vol. 69, no. 1, p. 93-109

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.

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

3-Mercaptopyruvate sulfurtransferase supports endothelial cell angiogenesis and bioenergetics

Abdollahi Govar, Armita ; Törő, Gábor ; Szaniszlo, Peter ; Pavlidou, Athanasia ; Bibli, Sofia‐Iris ; Thanki, Ketan ; Resto, Vicente A. ; Chao, Celia ; Hellmich, Mark R. ; Szabo, Csaba ; Papapetropoulos, Andreas ; Módis, Katalin

In: British Journal of Pharmacology, 2020, vol. 177, no. 4, p. 866–883

During angiogenesis, quiescent endothelial cells (ECs) are activated by various stimuli to form new blood vessels from pre‐existing ones in physiological and pathological conditions. Many research groups have shown that hydrogen sulfide (H2S), the newest member of the gasotransmitter family, acts as a proangiogenic factor. To date, very little is known about the regulatory role of...

Université de Fribourg

Seismotectonic analysis around the Mont Terri rock laboratory (Switzerland): a pilot study

Abednego, Martinus ; Blascheck, Patrick ; Schefer, Senecio ; Nussbaum, Christophe ; Joswig, Manfred ; Bossart, Paul ; Mosar, Jon

In: Swiss Journal of Geosciences, 2017, vol. 110, no. 1, p. 233–251

For this pilot study we used recorded seismic events from the SED permanent network and data from a dedicated SNS network to improve the seismotectonic understanding of very weak seismicity in the vicinity of the Mont Terri underground laboratory. We combined field data on faults with microseismic events and modelling of stress and focal mechanisms. Eighty-six events with very low magnitudes...

Université de Fribourg

Freedom of Contract in the 19th Century: Mythology and the Silence of the Sources : Review Essay – Sibylle Hofer’s Freiheit ohne Grenzen? privatrechtstheoretische Diskussionen im 19. Jahrhundert

Abegg, Andreas ; Thatcher, Annemarie

In: German Law Journal, 2004, vol. 5, p. 101-114

In her legal history postdoctoral Habilitation-study Freiheit ohne Grenzen? (Unlimited Freedom?), Sibylle Hofer comes to the conclusion that despite a large absence of discourse on contractual freedom the perception of unlimited freedom in the 19th Century private law theorie cannot be confirmed, instead this is more of a myth. By exploring the larger context of societal development at the end of...

Université de Fribourg

Public-Private Contractual Networks and Third Parties’ Rights : The Contracting State as a Challenge for Private Law

Abegg, Andreas

In: Festschrift für Gunther Teubner zum 65. Geburtstag, 2009, p. 201-214

In public-private partnership, the question of a third party's rights always was and still remains very controversial. On the one hand, public law has elaborated extensively on third parties' rights over the years. Solutions range from the two-step approach (Zweistufentheorie) to the extensive use of constitutional rights to the requirement of a compulsory written consent. On the other hand,...

Université de Fribourg

Civil Society Constitutionalism: The Power of Contract Law

Abegg, Andreas ; Amstutz, Marc ; Karavas, Vaios

In: Indiana Journal of Global Legal Studies, 2007, vol. 14, no. 2, p. 235-258

This article argues that the vision of a social law of contract is exhibited in the judgment of the Swiss Federal Court in Post v. Verein gegen Tierfabriken (“VgT”). The judgment is one of a law of contract that interacts with a community of the subjects instead of the individual subjects of a community. This paper contends that law today has the task of providing for the areas of social...