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This paper reviews several problems that arise in the area of design automation. Most of these problems are shown to be NP-hard. Further, it is unlikely that any of these problems can be solved by fast approximation algorithms that guarantee solutions that are always within some fixed relative error of the optimal solution value. This points out the… (More)

- B D Pant, Sunny Chauhan, A Bhatt, H Chandra, D R Sahu, H Chandra +1 other
- 2011

The concept of occasionally weakly compatible (shortly, owc) mappings introduced by Al-Thagafi and Shahzad [2], which is more general than the concept of weakly compatible maps. In this paper, we prove a common fixed point theorem for owc mappings in Menger space using arbitrary continuous t-norm for a nonlinear case. References [1] M. Aamri and D. El… (More)

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