pp 1-13 February 2012

On a Paper of S S Pillai

M Ram Murty R Thangadurai

pp 15-21 February 2012

Generalizations of some Zero Sum Theorems

M N Chintamani B K Moriya

pp 23-39 February 2012

A New Class of Lattice Paths and Partitions with 𝑛 Copies of 𝑛

S Anand A K Agarwal

pp 41-51 February 2012

Optimal Combinations Bounds of Root-Square and Arithmetic Means for Toader Mean

Yu-Ming Chu Miao-Kun Wang Song-Liang Qiu

pp 53-65 February 2012

Bounds on Gromov Hyperbolicity Constant in Graphs

José M Rodríguez José M Sigarreta

pp 67-73 February 2012

The Cartan Matrix of a Centralizer Algebra

Umesh V Dubey Amritanshu Prasad Pooja Singla

pp 75-77 February 2012

A Note on TI-Subgroups of Finite Groups

Jiakuan Lu Linna Pang

pp 79-86 February 2012

The Cohomology of Orbit Spaces of Certain Free Circle Group Actions

Hemant Kumar Singh Tej Bahadur Singh

pp 87-97 February 2012

Precise Asymptotics for Complete Moment Convergence in Hilbert Spaces

Keang Fu Juan Chen

pp 99-120 February 2012

An 𝑛-Dimensional Pseudo-Differential Operator Involving the Hankel Transformation

R S Pathak Akhilesh Prasad Manish Kumar

pp 121-128 February 2012

Annihilating Power Values of Co-Commutators with Generalized Derivations

Basudeb Dhara

pp 129-137 February 2012

Remarks on Hausdorff Measure and Stability for the 𝑝-Obstacle Problem $(1 < p < 2)$

Peihao Zhao Jun Zheng

pp 139-152 February 2012

Existence of Positive Solutions for the System of Higher Order Two-Point Boundary Value Problems

K R Prasad A Kameswara Rao S Nageswara Rao