An S-matrix satisying the Yang-Baxter equation with symmetries relevant to the AdS5 × S5 superstring has recently been determined up to an unknown scalar factor. Such scalar factors are typically fixed using crossing relations, however due to the lack of conventional relativistic invariance, in this case its determination remained an open problem. In this paper we propose an algebraic way to im...

A proposal is presented for simulating an improvement on quenched QCD with dynamical fermions which interact with the gluon configuration only via the topological index of the latter. Strengths and shortcomings of the method are discussed and it is argued that the approximation – though being crude – shares some qualitative aspects of full QCD which relate to the issue of chiral symmetry breaking.

Limitations of impact indices to compare scholars across disciplines and time based only the number of publications and citations are discussed. The S-index, based on more comprehensive scholar impact factors, is proposed.

The 10th Pacific Rim Geometry Conference 2011 Osaka-Fukuoka, Part I December 1 (Thursday) 9:50-10:50 Shu-Cheng Chang (National Taiwan University, Taiwan, ROC) “Li-Yau gradient estimate and entropy formulae for the CR heat equation in a closed pseudohermitian 3-manifold” Abstract: In this paper, we derive two sub-gradient estimates of the CR heat equation in a closed pseudohermitian 3-manifold w...