39 research outputs found
On 1+1 Dimensional Galilean Supersymmetry in Ultracold Quantum Gases
We discuss a 1+1 dimensional Galilean invariant model recently introduced in
connection with ultracold quantum gases. After showing its relation to a
nonrelativistic 2+1 Chern-Simons matter system, we identify the generators of
the supersymmetry and its relation with the existence of self-dual equationsComment: 12 page
Metamodel-based model conformance and multiview consistency checking
Model-driven development, using languages such as UML and BON, often makes use of multiple diagrams (e.g., class and sequence diagrams) when modeling systems. These diagrams, presenting different views of a system of interest, may be inconsistent. A metamodel provides a unifying framework in which to ensure and check consistency, while at the same time providing the means to distinguish between valid and invalid models, that is, conformance. Two formal specifications of the metamodel for an object-oriented modeling language are presented, and it is shown how to use these specifications for model conformance and multiview consistency checking. Comparisons are made in terms of completeness and the level of automation each provide for checking multiview consistency and model conformance. The lessons learned from applying formal techniques to the problems of metamodeling, model conformance, and multiview consistency checking are summarized
Consistency Problems in UML-Based Software Development
This survey of the workshop series Consistency Problems in UML-based Software Development aims to help readers to find the guidelines of the papers. First, general considerations about consistency and related problems are discussed. Next, the approaches proposed in the workshop papers to handle the problems are categorized and summarized. The last section includes extended abstracts of the papers from the current workshop
Nonrelativistic Supersymmetry in Noncommutative Space
We analize a model of non relativistic matter in 2+1 dimensional noncommutative space. The matter fields interact with gauge fields whose dynamics is dictated by a Chern Simons term. We show that it is possible to choose the coupling constants in such a way that the model has and extended supersyemmetry and Bogomolnyi equations can be found
Nonrelativistic supersymmetry in noncommutative space
We analyze a model of nonrelativistic matter in (2+1)-dimensional noncommutative space. The matter fields interact with gauge fields whose dynamics is dictated by a Chern-Simons term. We show that it is possible to choose the coupling constants in such a way that the model has and extended supersymmetry and Bogomolnyi equations can be found. © 2005 Elsevier B.V. All rights reserved.Fil:Sourrouille, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina