Contents of Volume 1, Number 4 October 1993

Oscillation of a Linear Neutral Delay Differential Equation with Unbounded Time Lag
DANG VU GIANG AND ISTVÁN GYÖRI
Pages 267 - 274

Explicit Solutions of Higher Order Boundary Value Differential Problems Stable Under data Perturbations
R.J.VILLANUEVA, A.HERVÁS AND J.L.MORERA
Pages 275 - 288

Convergence of a Difference Equation Via The Full Limiting Sequences Method
GEORGE KARAKOSTAS
Pages 289 - 294

Some Control Problems Solved Via a Sliding Manifold Approach
A.CAVALLO, G.DE MARIA AND P.NISTRI
Pages 295 - 310

Oscillatory Properties of Linear Difference Equations With Continuous Time
YURI DOMSHLAK
Pages 311 - 324

Study of Structured Populations with Quiescent State
S.V.KRISHNA AND S.BHATTACHARYYA
Pages 325 - 340

Coerciveness Estimates For a Class of Nonlocal Elliptic Problems
AISSA AIBECHE
Pages 341