Carnegie Mellon
Department of Mathematical 
Sciences

James Serrin, University of Minnesota, Minneapolis

"Dead cores and bursts for singular elliptic equations"

Abstract

We consider singular elliptic partial differential equations of the form

\begin{displaymath}
\mbox{div}\,\{A(\vert Du\vert)Du\} - f(u) = 0
\end{displaymath}

and show that under certain general conditions on the operator $A(\vert Du\vert)$ and on the nonlinearity $f(u)$ there exist dead core solutions, and even more, solutions which involve both a dead core and ``bursts'' within the core.

The closely related problem of solutions in an exterior domain that have compact support (dead core at infinity) will also be considered.

TUESDAY, April 15, 2003
Time:
1:30
Location: Wean Hall 5403
PLEASE NOTE CHANGE OF ROOM