𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Singularity theory concepts for a class of reaction-diffusion systems

✍ Scribed by Dirk Meinköhn


Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
798 KB
Volume
46
Category
Article
ISSN
0009-2509

No coin nor oath required. For personal study only.

✦ Synopsis


In the class of reaction-diKusion systems mathematically represented by the boundary value problem of Fourier's equation, necessary conditions for the appearance of singularities of codimension 1,2 and 3 (folds, cusps and swallow-tails) have been derived. The class of problems is characterized by a nonlinear function w(y) which comprises the Arrhenius exponential and an algebraic factor. The derived conditions are shown to be independent of geometry, if the "reaction vessel" possesses a center of symmetry. A numerical example provides an impression of the power of the method.


📜 SIMILAR VOLUMES


Multiple Homoclinics for a Class of Sing
✍ Paolo Caldiroli; Colette De Coster 📂 Article 📅 1997 🏛 Elsevier Science 🌐 English ⚖ 256 KB

## RN \_ S ª R has a unique strict global maximum at a point p g R N and a singular Under some compactness conditions on V at 1 infinity and around the singular set S we study the existence of homoclinic orbits to p which link with S. When V and G satisfy suitable geometrical conditions, we can p

Global Attractors and Steady State Solut
✍ Le Dung 📂 Article 📅 1998 🏛 Elsevier Science 🌐 English ⚖ 413 KB

We show that weak L p dissipativity implies strong L dissipativity and therefore implies the existence of global attractors for a general class of reaction diffusion systems. This generalizes the results of Alikakos and Rothe. The results on positive steady states (especially for systems of three eq

Homoclinics and Heteroclinics for a Clas
✍ Paolo Caldiroli; Louis Jeanjean 📂 Article 📅 1997 🏛 Elsevier Science 🌐 English ⚖ 584 KB

We consider an autonomous Hamiltonian system u +{V(u)=0 where the potential V : R 2 "[!] Ä R has a strict global maximum at the origin and a singularity at some point !{0. Under some compactness conditions on V at infinity and around the singularity ! we study the existence of homoclinic orbits to 0