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# Accession Number:

## ADA167539

# Title:

## Pointwise A-Priori Bounds for Strongly Coupled Semilinear Parabolic Systems.

# Descriptive Note:

## Technical summary rept.,

# Corporate Author:

## WISCONSIN UNIV-MADISON MATHEMATICS RESEARCH CENTER

# Report Date:

## 1986-03-01

# Pagination or Media Count:

##
13.0

# Abstract:

## The prototype parabolic partial differential equation is the heat conduction equation. This paper deals with systems of parabolic equations. Such systems occur in many contexts in addition to heat conduction, e.g. biology, in nuclear reactor techniques, in economics, etc. Let the n-vector u denote the unknown solution of a system of n parabolic partial differential equations. An important question in the study of these systems is the boundedness of u. Many techniques and criteria have been developed to solve this problem if the system is weakly coupled, i.e. if the k sub th equation contains second order space derivatives of only u sub k, the k sub th component of u. If this is not the case, the system is said to be strongly coupled. This paper for a broad class of strongly coupled parabolic systems pointwis boundedness of the solution u is established.

# Distribution Statement:

## APPROVED FOR PUBLIC RELEASE

#