A simple characterization of homogeneous Young measures and weak convergence of their densities. (1st February 2017)

• Record Type: Journal Article
• Authors: Puchała, Piotr
• Is Part Of: Optimization. Volume 66:Number 2(2017)
• Page Start: 197
• Page End: 203
• Publication Date: 2017-02-01
• Subjects: Homogeneous Young measures -- weak convergence of measures -- weak convergence of functions -- optimization; Mathematical optimization -- Periodicals; 519.7
• DOI: 10.1080/02331934.2016.1269261
• Languages: English
• ISSNs: 0233-1934

Abstract

Abstract : We formulate a simple characterization of homogeneous Young measures associated with measurable functions. It is based on the notion of the quasi-Young measure introduced in the previous article published in this Journal. First, homogeneous Young measures associated with the measurable functions are recognized as the constant mappings defined on the domain of the underlying function with values in the space of probability measures on the range of these functions. Then the characterization of homogeneous Young measures via image measures is formulated. Finally, we investigate the connections between weak convergence of the homogeneous Young measures understood as elements of the Banach space of scalar valued measures and the weak sequential convergence of their densities. A scalar case of the smooth functions and their Young measures being Lebesgue-Stieltjes measures is also analysed.