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**International
Journal of Mathematics Research (IJMR)**

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**Volume
3, Number 1 (2011) **

__Contents__

**Fixed
Point Theorems on Two Complete Metric Spaces**

pp. 1-7

**Authors: ***Zaheer K. Ansari, Rajesh Shrivastava, Arun Garg and Manish
Sharma*

**Integer Graph Labelings of Generalized
Petersen Graphs with Distance Restrictions**

pp. 9-21

**Authors: ***K. R. Jayasree and T. Nicholas*

**Credit Financing in Economic Ordering
Policies of Deteriorating Items with Quadratic Time Dependent Demand Rate**

pp. 23-30

**Authors: ***R.P. Tripathi and S.M. Mishra*

**On Rough (m,n) Quasi-Γ-ideal in Γ-Semigroup**

pp. 31-38

**Authors: ***Moin A. Ansari and M. Rais Khan*

**Relative Strength h of Summability (D,
k)(C,α ,β ) p and Absolute Cesaro Summability**

pp. 39-51

**Authors: ***Suyash Narayan Mishra and Piyush Tripathi*

**Invertible and Complement Elements in a
Ring**

pp. 53-57

**Authors: ***K.V.R. Srinivas and V.V. Sramachandram*

**A Study on Global Stability of the
Harvested Enemy and an Ammensal Species Pair with Limited Resources**

pp. 59-67

**Authors: ***K.V.L.N. Acharyulu & N.Ch. Pattabhi Ramacharyulu*

**Continuous Time Dependent Travelling
Salesman Problem**

pp. 69-78

**Authors: ***B. Naganna, K. Sobhan Babu and M. Sundara Murthy*

**On Numerical Integration of Analytic
Functions of One Complex Variable.**

pp. 79-88

**Authors: ***R.N. Das and M.K. Hota*