The architectural regularity of FPGAs provides an inherent redundancy which can be exploited for fault tolerance and yield enhancement. In this paper we examine the problem of recon guring the placement of a circuit on an FPGA to tolerate a given fault pattern in the array of CLBs. The primary objective of the placement recon guration is to minimize timing degradation. The concept of a slack ne...

We consider the φ quantum field theory in two and three spacetime dimensions. In the single phase region the physical mass (inverse correlation length) m(σ) decreases continuously to zero as the bare mass parameter σ approaches a critical value σc from above. In three dimensions the critical point σc is in the single phase region and the physical mass vanishes there, m(σc) = 0. A consequence of...