The infinite-U Anderson model is applied to transport through a quantum dot. The current and density of states are obtained via the non-crossing approximation for two spin-degenerate levels weakly coupled to two leads. At low temperatures, the Kondo peak in the equilibrium density of states strongly enhances the linear-response conductance. Application of a finite voltage bias reduces the condu...

A hardware sorter suitable for VLSI implementation is proposed. I t operates in a parallel and pipelined fashion, with the actual sorting time absorbed by the inputloutput time. A detailed VLSI implementation is described which has a very favorable device count compared to existing static RAM. 1. Introduction Sorting is one of the most important operations in data while the item at the top cell...

In this paper we introduce the notions of G∗L-module and G∗L-module whichare two proper generalizations of δ-lifting modules. We give some characteriza tions and properties of these modules. We show that a G∗L-module decomposesinto a semisimple submodule M1 and a submodule M2 of M such that every non-zero submodule of M2 contains a non-zero δ-cosingular submodule.

We study aspects of Calabi–Yau four-folds as compactification manifolds of F-theory, using mirror symmetry. Correlation functions of the topological field theory are determined directly in terms of a natural ring structure of divisors and the period integrals, and subsequently used to extract invariants of moduli spaces of rational curves subject to certain conditions. We then turn to the discu...