**Volume
5, Number 1, (2013)**

*CONTENTS*

**New Generalization of Topological Weak Continuity**

pp. 1-11

**Authors:
*** M. Lellis Thivagar and C. Santhini*

**Minimum Unorthodox Measure of Entropy for Prescribed Harmonic Mean and Arithmetic Mean**

pp. 13-29

**Authors:
*** Anju Rani and Shalu Garg*

**Mathematical Analysis of Inclined Ground Heat Exchanger **

pp. 31-46

**Authors:
*** Prof. Rajesh Gupta and Dinesh Kumar Soni*

**On Generalized Useful Entropy for Incomplete Probability Distribution**

pp. 47-52

**Authors:
*** P. Jha and Anjali Chandravanshi*

**Invariant Monotonicity (Quasi &Pseudo) and Invexity **

pp. 53-67

**Authors:
*** S.K. Pradhan, D.K. Dalai and R.B. Dash*

**Study
of Some Mappings in Bitopological Space**

pp. 69-85

**Authors:
***Trishla Garg and Krishna Singhal*