We obtain the induced action F[h, b] for chiral W3 gravity in the c ~ ___ limit from the induced action of a gauged Sl(3, R) Wess-Zumino-Witten model by imposing constraints on the currents of the latter. In the process we find a closed gauge algebra for the gauge sector of W3 gravity in which the currents T and W become auxiliary fields. An explicit realization of T and W in terms of the gauge...

We propose and analyze a physical system that naturally admits two-dimensional topological nearly flat bands. Our approach utilizes an array of three-level dipoles (effective S=1 spins) driven by inhomogeneous electromagnetic fields. The dipolar interactions produce arbitrary uniform background gauge fields for an effective collection of conserved hard-core bosons, namely, the dressed spin flip...

Building Information Modeling (BIM) and building lifecycle management (BLM), proposed for the realization of building lifecycle information exchange and sharing, play a crucial role in the research and development fields of construction information integration and interoperability. This study, from an information technology point of view, based on BLM and BIM technology and Industry Foundation ...

We consider the two-dimensional model of W3-gravity within Lagrangian quantization methods for general gauge theories. We use the Batalin–Vilkovisky formalism to study the arbitrariness in the realization of the gauge algebra. We obtain a one-parametric non-analytic extension of the gauge algebra, and a corresponding solution of the classical master equation, related via an anticanonical transf...

I discuss a realization of stress-tensor for parafermion theories following the generalized Frenkel-Kac construction for higher level Kac-Moody algebras. All the fields are obtained from d=rank free bosons compactified on torus. This gives an alternative realization of Virasoro algebra in terms of a non-local correction of a free field construction which does not fit the usual background charge...

I discuss a realization of stress-tensor for parafermion theories following the generalized Frenkel-Kac construction for higher level Kac-Moody algebras. All the fields are obtained from d=rank free bosons compactified on torus. This gives an alternative realization of Virasoro algebra in terms of a non-local correction of a free field construction which does not fit the usual background charge...

This paper reviews proposed realization concepts and achievements of wireless sensor nodes and focuses on new developments in the 24 GHz frequency range. The relatively high frequency offers the advantage of ultra miniaturization and therefore opens new application fields. On the other hand power consumption of the RF-front-end becomes still more challenging than at lower frequencies. It is sho...

This paper deals with the feedback control of a DC motor speed with using the fractional-order controller. The permanentmagnet DC motor is often used in mechatronic and other fields of control theory and therefore its control is very important. The mathematical description of the fractional order controller and its implementation in the analogue and the discrete domains is presented. An example...

In a preceding paper we developed a reformulation of Newtonian gravitation as a gauge theory of the extended Galilei group. In the present one we derive two true generalizations of Newton’s theory (a ten-fields and an eleven-fields theory), in terms of an explicit Lagrangian realization of the absolute time dynamics of a Riemannian three-space. They turn out to be gauge invariant theories of th...