Partial Differential Equations

Aproximación numérica a la propagación de ondas de tsunami y caso de estudio en la costa Caribe Colombiana

El estudio del fenómeno de tsunami ha sido de gran interés, especialmente en la última decada. La utilización de modelos matemáticos para simular los efectos de tsunami en oceanos y costas ha sido posible, al punto de calcular con gran detalle y …

On the Riemann Problem for a Hyperbolic System of Temple Class

In this chapter, we study the one-dimensional Riemann problem for a hyperbolic system of three conservation laws of temple class. Under suitable generalized Rankine–Hugoniot relation and entropy condition, both existence and uniqueness of particular …

Asymptotic Behavior of Global Entropy Solutions for Nonstrictly Hyperbolic Systems with Linear Damping

We investigate the large time behavior of the global weak entropy solutions to the symmetric Keyfitz-Kranzer system with linear damping. It is proved that as t to infinity the entropy solutions tend to zero in the Lp norm.

Delta Shock Wave for the Suliciu Relaxation System

We study the one-dimensional Riemann problem for a hyperbolic system of three conservation laws of Temple class. This system is a simplification of a recently proposed system of five conservations laws by Bouchut and Boyaval that model viscoelastic …

On lower bounds for possible blow-up solutions to the periodic Navier-Stokes equation

We show a new lower bound on the H{sup .3/2} (T{sup 3}) norm of a possible blow-up solution to the Navier-Stokes equation, and also comment on the extension of this result to the whole space. This estimate can be seen as a natural limiting result for …

Relaxation Limit for Aw-Rascle System

We study the relaxation limit for the Aw-Rascle system of traffic flow. For thiswe apply the theory of invariant regions and the compensated compactnessmethod to get global existence of Cauchy problem for a particular Aw-Rascle system with source, …

Compensated compactness for a hyperbolic system of balance laws with three equations

We consider the problem studied by Lu et. al. in [Proc. Am. Math. Soc. 131, 3511 (2003)] to which we add a source term. This is a system of three balance laws. We use standard techniques, such as viscous approximations and compensated compactness, to …

Derivación, el teorema de Rolle y del valor Medio para funciones de una Variable Compleja

En este artículo se exponen algunos conceptos básicos de derivación para funciones de una variable compleja. También se muestran algunas versiones del Teorema de Rolle y del Valor Medio para funciones de una variable compleja.

Buen planteamiento local para una modificación de la ecuación Korteweg-De Vries