The subject of blow-up in a finite time, or at least very rapid growth,
of a solution to a partial differential equation has been an area of
intense re- search activity in mathematics. Some ofthe early techniques
and results were discussed in the monograph by Payne (1975) and in my
earlier monograph, Straughan (1982). Relatively recent accounts of
blow-up work in partial dif- ferential equations may be found in the
review by Levine (1990) and in the book by Samarskii et al. (1994). It
is becoming increasingly clear that very rapid instabilities and,
indeed, finite time blow-up are being witnessed also in problems in
applied mathematics and mechanics. Also in vogue in the mathematical
literature are studies of blow-up in systems of partial differen- tial
equations, partial differential equations with non-linear convection
terms, and systems of partial differential equations which contain
convection terms. Such equations are often derived from models of
mundane situations in real life. This book is an account of these topics
in a selection of areas of applied mathematics which either I have
worked in or I find particularly interesting and deem relevant to be
included in such an exposition. I believe the results given in Chap. 2
and Sects. 4. 2. 3 and 4. 2. 4 are new. This research was partly
supported by a Max Planck Forschungspreis from the Alexander von
Humboldt Foundation and the Max Planck Institute.