Perfect isometries and isotypies are constructed for alternating groups between blocks with abelian defect groups and the Brauer correspondents of these blocks. These perfect isometries and isotypies satisfy additional compatibility conditions which imply that an extended Broué conjecture holds for the principal block of an almost simple group with an abelian Sylow psubgroup and a generalized F...

This paper propose an approach to extract the most significant color information that takes into account 1) the inherent sensitivity of the Human Visual System (HVS) to color variations and 2) the sensitivity of the HVS to specific colors of a given image. By giving higher importance to the significant colors in the stabilization control formulation, it is possible to retain the consistency of ...

Large discrepancy of the p-wave phase shift data δ1(ν) of the π-π scattering from those of the dispersion calculation is pointed out. In order to determine which is correct, the pion form factor Fπ(ν), which is the second source of information of the phase shift δ1(ν), is used. It is found that the phase shift obtained from the dispersion is not compatible with the data of the pion form factor....

Many extensions of the minimal supersymmetric standard model contain superfields for quarks which are singlets under weak isospin with electric charge −1/3. We explore the possibility that such isosinglet quarks have low or intermediate scale masses, but do not mediate rapid proton decay because of a discrete symmetry. By imposing the discrete gauge anomaly cancellation conditions, we show that...

This document describes Stanford University’s first entry into a NIST Arabic-English MT evaluation. We describe two main improvements over a previous Chinese-English submission (Galley et al., 2008): a hierarchical lexicalized reordering model (Galley and Manning, 2008) and a technique for performing minimum error rate training (Cer et al., 2008) that outperforms the standard Powell method. 1 S...

API evolution is the process of migrating an inter-library interface from one version to another. Such a migration requires checking that all libraries which interact through the interface be updated. Libraries can be updated one by one if there is a transition period during which both updated and non-updated libraries can communicate through some transitional version of the interface. Static t...

If the one term (ν̂eμ̂ − êν̂μ)τ̂ c is added to the MSSM (Minimal Supersymmetric Standard Model) superpotential, the recently observed muon g–2 (anomalous magnetic moment) excess can be explained very simply by a light ν̃e. If the soft symmetrybreaking terms ν̂αĥ 0 2 − l̂αĥ2 are also added, realistic neutrino masses (with bimaximal mixing) are generated as well. ————– Talk given at the 7th Hellenic Sch...

We give short expositions of both Leighton’s proof and the BassKulkarni proof of Leighton’s graph covering theorem, in the context of colored graphs. We discuss a further generalization, needed elsewhere, to “symmetryrestricted graphs.” We can prove it in some cases, for example, if the “graph of colors” is a tree, but we do not know if it is true in general. We show that Bass’s Conjugation The...

We calculate the contribution to the nuclear energy density functional which arises from iterated pion-photon exchange between nucleons. In heavy nuclei, this novel charge symmetry breaking interaction leads to an additional binding of each proton by about 0.2 MeV. Compared to that the analogous effect from irreducible pion-photon exchange is negligibly small. As a possible mechanism to resolve...

and call functions Figure 5. Field calculus is a minimal syntax and semantics for construction of aggregate programs with a coherent mapping from aggregate syntax to local syntax. (Online version in colour.) 4. Foundation: field calculus Field calculus [19] provides a theoretical foundation for aggregate programming, grounding on the idea of computing by functional manipulation of computational...