Vol.23, No.4
An application of Ramsey theory to the crossing number of posets
Author ： CHIANG LIN (林強)
Commuting additive mappings in semiprime rings
Author ： TSIU-KWEN LEE (李秋坤) and TSONG-CHERNG LEE (李聰成)
Some remarks on locally compact topological groups
Author ： T.S. WU and J. S. YANG
Full Text Not Available
On the solvability of some systems of linear differential equations with unbounded coefficients
Author ： LABIB R. AWAD and SHERIF EL-BENDARY
Full Text Not Available
On the spectral theory of first-order difference equations with periodic coefficients fractional-linear in the spectral parameter
Author ： GUSEIN SH. GUSEINOV and ZEYNEP FIDAN KOCDAK
Full Text Not Available