Summary: POSITIVITY OF GREEN'S FUNCTION
FOR AN n-POINT RIGHT FOCAL
BOUNDARY VALUE PROBLEM ON
Department of Mathematics and Computer Science
Moorhead, MN 56562
We determine sufficient conditions for the positivity of Green's function for
an n-point right focal boundary value problem on measure chains whose forward
jump operator is delta differentiable. For n = 3, 4 and various measure chains
we see that positivity depends on the distances between boundary points.
Key words: measure chains, Green's function.
AMS Subject Classification. 39A10.
Define the operator L by
Lx(t) := (-1)n-1