Electronic Journal of Differential Equations,
Vol. 1999(1999), No. 25, pp. 1-14.

Title: A necessary and sufficient condition for the diagonalization  
       of multi-dimensional quasilinear systems 

Author: De-xing Kong (Kyoto Sangyo Univ., Kyoto, Japan)

Abstract: 
In this paper, the author obtains a necessary and sufficient condition on 
the diagonalization of multi-dimensional quasilinear systems of first order,
and gives some physical applications.

Submitted July 1, 1999. Published July 29, 1999. 
Math Subject Classification: 35F20, 35L40.
Key Words: Quasilinear systems; diagonalization; 
           strict Riemann invariants; conservation laws.