U.S.-Brazil Cooperative Research: Investigation of Non- Linear Sigma Models

美国-巴西合作研究：非线性西格玛模型的研究

• 批准号: 9602559
• 负责人: Ashok Das
• 金额: $ 3.4万
• 依托单位: University of Rochester
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-03-01 至 2000-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9602559&HistoricalAwards=false
• 关键词: U.S.; Brazil; Cooperative; Research; Investigation

9602559 Das This U.S.-Brazil award will support collaborative research between Dr. Ashok Das of the University of Rochester and Dr. Joao Barcelos-Neto of the Federal University of Rio de Janeiro. They wish to investigate the following: the Gelfand-Dikii formulation of the nonlinear sigma models which would clarify various properties associated with the system; two boson equation to 2+1 dimensions and study the existence of a Miura transformation which would map it to the Davey-Stewartson equation (They will analyze this through a non-standard multicomponent KP system.); various properties of dispersionless equations and their supersymmetric counterparts; and the large order behavior of perturbation theory at finite temperature. This grant will allow two well-respected researchers to meet and work together at one of the strongest research institutions in Brazil. They will include a graduate student from the University of Rochester to their team, giving a young researcher an international experience, as well as the benefit of working with two accomplished senior researchers. ***

小行星9602559 这个美国-巴西奖将支持罗切斯特大学的Ashok Das博士和里约热内卢联邦大学的Joao Dasos-Neto博士之间的合作研究。 他们希望研究以下内容：非线性sigma模型的Gelfand-Dikii公式，这将阐明与系统相关的各种属性; 2+1维的两个玻色子方程，并研究将其映射到Davey-Stewartson方程的Miura变换的存在性（他们将通过非标准多组分KP系统分析这一点）。无色散方程及其超对称对应方程的各种性质，以及有限温度下微扰理论的高阶行为。 这笔赠款将使两位备受尊敬的研究人员能够在巴西最强大的研究机构之一会面并共同工作。 他们将包括一名来自罗切斯特大学的研究生到他们的团队中，为年轻的研究人员提供国际经验，以及与两名有成就的高级研究人员合作的好处。 ***