 
Summary: inv lvea journal of mathematics
mathematical sciences publishers
2009 Vol. 2, No. 1
Oscillation criteria for twodimensional systems of
firstorder linear dynamic equations on time scales
Douglas R. Anderson and William R. Hall
INVOLVE 2:1(2009)
Oscillation criteria for twodimensional systems of
firstorder linear dynamic equations on time scales
Douglas R. Anderson and William R. Hall
(Communicated by John V. Baxley)
Oscillation criteria for twodimensional difference systems of firstorder linear
difference equations are generalized and extended to arbitrary dynamic equa
tions on time scales. This unifies under one theory corresponding results from
differential systems, and includes secondorder selfadjoint differential, differ
ence, and qdifference equations within its scope. Examples are given illustrat
ing a key theorem.
1. Prelude
Jiang and Tang [2007] have established sufficient conditions for the oscillation of
the linear twodimensional difference system
