Conformal field theories with ŝl(2)−1/2 symmetry are studied with a view to investigating logarithmic structures. Applying the parafermionic coset construction to the non-logarithmic theory, a part of the structure of the triplet model is uncovered. In particular, the coset theory is shown to admit the triplet W -algebra as a chiral algebra. This motivates the introduction of an augmented ŝl(2)...

where e, m and g are the charge, mass and gyromagnetic factor of the particle. In the Dirac theory of a charged pointlike spin-1/2 particle, g = 2, and QED effects slightly increase the g value. Conventionally, a quantity a ≡ (g−2)/2 is referred to as the anomalous magnetic moment. The electron and muon anomalous magnetic moments have been measured with a very high relative accuracy of 0.24 ppb...

In the present research, we proposed and tested a 2 × 2 standpoints model of achievement goals grounded in the development-demonstration and approach-avoidance distinctions. Three empirical studies are presented. Study 1 provided evidence supporting the structure and psychometric properties of a newly developed measure of the goals of the 2 × 2 standpoints model. Study 2 documented the predicti...

Let G be an algebraic reductive group over a field of positive characteristic. Choose a parabolic subgroup P in G and denote by U its unipotent radical. Let X be a G-variety. The purpose of this paper is to give two examples of a situation in which the functor of averaging of l-adic sheaves on X with respect to a generic character χ : U → Ga commutes with Verdier duality. Namely, in the first e...

We present a lattice gas model to simulate snow transport by wind and its deposition on a given ground proole. Our approach is very well suited to a ne grained massively parallel computing.

This paper presents an original approach to visual motion analysis. We propose an analog model of the vertebrate retina which performs a regularisation of the retinal image and we show, from a signal processing viewpoint, that a high-pass temporal lter and a spatial directional ltering, after this retinal processing, can act naturally as a matched lter, insensitive to spatiotemporal noise, to d...