Pure Mathematics and Applications
ALGEBRA AND THEORETICAL COMPUTER SCIENCE

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Volume 16 (2005), Issue No. 3

Foreword

X. M. Ren, Y. Wang and K. P. Shum: On finding the generalized inverse matrix for the product of matrices

M. Barnabei, F. Bonetti and M. Silimbani: An algorithmic approach to maximal unions of chains in a partially ordered set

Yi Zhi Chen and Yonghua Li: Perfect wrpp semigroups

L. Ferrari and R. Pinzani: Catalan-like numbers and succession rules

A. Frosini and M. Nivat: On a tomographic equivalence between (0, 1) matrices

A. Gagarin, G. Labelle and P. Leroux: The structure and labelled enumeration of K3,3 -subdivision-free projective-planar graphs

A. Khosravi and B. Khosravi: Two new characterizations for sporadic simple groups

G. Louchard, C. Marini, F. Montagna and G. Simi: A variant of the Guessing Secrets game

S. Nenthein, P. Youngkhong and Y. Kemprasit: Regular elements of some transformation semigroups