International Journal of Mathematics and Mathematical Sciences
Volume 1 (1978), Issue 1, Pages 31-40
doi:10.1155/S0161171278000046
Comparison theorems for ultrahyperbolic equations
C.C. Travis1
and E.C. Young2
1Department of Mathematics, University of Tennessee, Knoxville 37916, Tennessee, USA
2Department of Mathematics, Florida State University, Tallahassee 32306, Florida, USA
Abstract
Sturmian comparison theorems are obtained for solutions of a class of normal and singular ultrahyperbolic partial differential equations. In the singular case, solutions are considered which satisfy non-standard boundary conditions.