Differential inequalities with initial time difference and applications. Lakshmikantham, V.; Vatsala, A.S. — 1999 Journal of Inequalities and Applications [electronic only]
Generalized practical stability results by perturbing Lyapunov functions. Stutson, Donna; Vatsala, A.S. — 1996 Journal of Applied Mathematics and Stochastic Analysis
Quasilinearization for the periodic boundary value problem for systems of impulsive differential equations. Hristova, S.G.; Vatsala, A.S. — 2006 Journal of Applied Mathematics and Stochastic Analysis
Monotone iterative technique for semilinear elliptic systems. Vatsala, A.S.; Yang, Jie — 2005 Boundary Value Problems [electronic only]
Second method of Lyapunov for stability of linear impulsive differential-difference equations with variable impulsive perturbations. Bainov, D.D.; Stamova, I.M.; Vatsala, A.S. — 1998 Journal of Applied Mathematics and Stochastic Analysis
Generalized quasilinearization method and higher order of convergence for second-order boundary value problems. Melton, Tanya G.; Vatsala, A.S. — 2006 Boundary Value Problems [electronic only]
Reaction diffusion equations and quadratic convergence. Vatsala, A.S.; Mahrous, Mohamed A.; Alkahby, Hadi Yahya — 1997 Journal of Applied Mathematics and Stochastic Analysis