Volume 1  Number 4  December 1997

	On the Minimum Area of Convex Lattice Polygons
	Nonoscillatory Property of Second Order Nonlinear Differential Equations of Advanced Type
	Constrained Arrangements of Objects in a Cycle
	Infinitesimal Generators of Random Positive Semigroups
	Optimality Conditions for Semi-Preinvex Programming
	Ball Separation Properties in Banach Spaces and Extremal Properties of Unit Ball in Dual Space
	Gram-schmidt Process of Orthonormalization in Banach Spaces
	Nonlinear Mean Ergodic Theorems
	The Period of a Lotka-Volterra System
	Analytic Solutions of a Functional Differential Equation with State Dependent Argument
	Uniform CTL for Markov Chains with a Countable State Space
	Solutions of a Class of N-th Order Ordinary and Partial Differential Equations via Fractional Calculus
	A Completely Stationary Markov Chain with Infinite State Space
	On Certain Operator Families Related to Cosine Operator Functions
	On the Solvability of Solutions To Some Quasilinear Elliptic Problems