Chuan Fu YANG, Zhen You HUANG, Yu Ping WANG
Commutants and hyper-reflexivity of multiplication operators
Karim HEDAYATIAN, Masoumeh FAGHIH-AHMADI
Erratum to: ``Null Mannheim curves in the Minkowski 3-space $Bbb {E}^3_1$''
Oscillation of solutions of a neutral pantograph equation with impulsive perturbations
Structure theorems for rings under certain coactions of a Hopf algebra
Threshold complexes and connections to number theory
Jonathan PAKIANATHAN, Troy WINFREE
A variation of supplemented modules
Ayse Tugba GÜROĞLU, Gökhan BİLHAN
The cyclic behavior of the constrictive Markov operators
Cesar Emilio VILLARREAL-RODRIGUEZ
On the existence of (400, 57, 8) non-abelian difference sets
Derived and residual Sylvester-Hadamard designs and the Smith normal form