Computation of Green's matrices for boundary value problems associated with a pair of mixed linear regular ordinary differential operators. Bhaskar, T.Gnana; Venkatesulu, M. — 1995 International Journal of Mathematics and Mathematical Sciences
Generalized flow invariance for differential inclusions. Bhaskar, T.Gnana; Lakshmikantham, V. — 2006 Journal of Applied Mathematics and Stochastic Analysis