CONTENTS

Code construction methods of α-codes
S. Jain and G.C. Petalcorin, Jr.

Higher-order difference equations with Fibonacci-Genocchi polynomials
J.Y. Kang

Weak semiring structure of β-languages
A. Jain and G.C. Petalcorin, Jr.

Pseudo-deterministic finite automata (PDFA) as language acceptors
A. Jain and G.C. Petalcorin, Jr.