Dominique Brun

Universidad Iberoamericana Ciudad de México · Department of Physics and Mathematics

Se describe el cambio en un paradigma dentro de las investigaciones realizadas en el campo de la hidrodinámica relativista desde el punto de vista de la teoría cinética, referente fundamentalmente al uso de una ecuación constitutiva diferente. Se relata los obstáculos, esto es, la oposición a la novedad en el mundo académico internacional, haciendo...

This article proposes two conformal Solow models (with and without migration), 1 accompanied by simulations for six Organisation for Economic Cooperation and Development 2 economies. The models are proposed by employing suitable Inada conditions on the Cobb-Douglas 3 function and making use of the truncated M-derivative for the Mittag-Leffler funct...

This article proposes two conformal Solow models (with and without migration), accompanied by simulations for six Organisation for Economic Co-operation and Development economies. The models are proposed by employing suitable Inada conditions on the Cobb–Douglas function and making use of the truncated M-derivative for the Mittag–Leffler function....

Consumers are becoming more aware of their role in the propagation of environmental issues, the transition from passive consumer to prosumer is emerging, and it is of interest to know the commitment factors that leads the biodiesel prosumer to act in favor of an organization which they belong in order to achieve one goal in common and contribute to...

Thermal dissipation in plasmas includes a variety of effects, most of them arising from the fact that these gases are usually composed of at least two species. In the case of a mild temperature single component charged fluid kinetic theory indicates that the temperature gradient is the only source of vector-type dissipation. However, if the tempera...

Richard C. Tolman analyzed the relation between a temperature gradient and a gravitational field in an equilibrium situation. In 2012, Tolman\textquoteright s law was generalized to a non-equilibrium situation for a simple dilute relativistic fluid. The result in that scenario, obtained by introducing the gravitational force through the molecular a...

Transport properties in gases are significantly affected by temperature. In previous works it has been shown that when the thermal agitation in a gas is high enough, such that relativistic effects become relevant, heat dissipation is driven not solely by a temperature gradient but also by other vector forces. In the case of relativistic charged flu...

Extended theories are widely used in the literature to describe relativistic fluids. The motivation for this is mostly due to the causality issues allegedly present in the first order in the gradients theories. However, the decay of fluctuations in the system is also at stake when first order theories that couple heat with acceleration are used. Th...

Entropy production due to heat flux in a simple relativistic fluid in the presence of a weak gravitational field is calculated from the special relativistic kinetic theory point of view. Beginning with the Boltzmann equation and using Chapman-Enskog's hypothesis we show that, additional to the temperature gradient and the relativistic contribution...

It is well known that, in the absence of external forces, simple non-relativistic fluids involve entropy production only through heat conduction and shear viscosity. In this work, it is shown that a number density gradient contributes to the local entropy production of a simple relativistic fluid using special relativistic kinetic theory. Also, the...

In this paper it is shown that Tolman's law can be derived from relativistic kinetic theory applied to a simple fluid in a BGK-like approximation. Using this framework, it becomes clear that the contribution of the gravitational field can be viewed as a cross effect that resembles the so-called \emph{Thomson effect} in irreversible thermodynamics....

Extended theories are widely used in the literature to describe the relativistic fluid. The motivation for this is mostly due to the causality issues allegedly present in the first order theories. However, the decay of fluctuations in the system is also at stake when first order theories \emph{that couple heat with acceleration} are used. In this p...

This work applies a Rayleigh-Brillouin light spectrum analysis in order to establish a causality test by means of a frequency cone. This technique allows to identify forbidden and unforbidden regions in light scattering experiments and establishes if a set of linearized transport equations admits causal solutions. It is shown that, when studying a...

It is shown that thermal fluctuations present in a simple non-degenerate relativistic fluid satisfy a wave equation in the Euler regime. The characteristic propagation speeds are calculated and the classical expression for the speed of sound is recovered at the non relativistic limit. Implications and generalizations of this work are analyzed. Comm...

Una estrategia organizacional contemporánea de las Instituciones Gubernamentales es la retroalimentación de sus usuarios. Esto permite el logro de un mayor nivel de democracia, ya que los ciudadanos no sólo participan en la selección de los gobernantes, sino también en la evaluación y diseño de políticas y programas públicos. En México desde 2005,...