Motivated by flavour symmetry models, we construct theories based on a low-energy limit featuring lepton triality that have the flavour-violating decays $\tau^\pm \to \mu^\pm e^\mp$ and e^\pm \mu^\mp$ as main phenomenological signatures of physics beyond standard model. These decay modes are expected to be probed in near future with increased sensitivity Belle II experiment at SuperKEKB collide...

Seguindo o percurso de aproximar leitor no Brasil a textos literários publicados nas últimas décadas do século XIX e primeiras XX por escritores em Língua Hebraica na Europa, este texto apresenta tradução conto Pai Filho, Yehuda Steinberg. Steinberg nasceu 1863 cidade Lipcani, atual República da Moldávia, que fazia parte Império Russo. Considerado um dos grandes língua íidiche, acabou aderindo ...

Tits has defined Steinberg groups and Kac-Moody groups for any root system and any commutative ring R. We establish a Curtis-Tits-style presentation for the Steinberg group St of any rank ≥ 3 irreducible affine root system, for any R. Namely, St is the direct limit of the Steinberg groups coming from the 1and 2-node subdiagrams of the Dynkin diagram. This leads to a completely explicit presenta...

d long as the data rate is low enough to permit real-time transfer from disk. This paper is concerned with a method esigned to improve the final visual quality of M-JPEG sequences, without affecting the bit rate or quantization o d parameters. It is based on a procedure we refer to as temporal error diffusion. The term error diffusion is used t escribe a halftoning procedure introduced by Floyd...

We examine dualities of two dimensional conformal field theories by applying the methods developed in previous works. first derive duality between SL(2|1)k/(SL(2)k⊗U(1)) coset and Witten's cigar model or sine-Liouville theory. The latter models are Fateev-Zamolodchikov-Zamolodchikov (FZZ-)dual to each other, hence relation three is named FZZ-triality. These results used study correlator corresp...

We give an overview of some of the main results in geometric representation theory that have been proved by means of the Steinberg variety. Steinberg’s insight was to use such a variety of triples in order to prove a conjectured formula by Grothendieck. The Steinberg variety was later used to give an alternative approach to Springer’s representations and played a central role in the proof of th...