In this paper we prove a representation result for essentially bounded multivalued martingales with nonempty closed convex and bounded values in a real separable Banach space. Then we turn our attention to the interplay between multimeasures and multivalued Riesz representations. Finally, we give the multivalued Radon-Nikodym property.
Sia uno spazio di Banach reale, separabile e la classe dei sottoinsiemi non vuoti, chiusi, limitati e convessi di . Si dimostra un risultato di rappresentazione per martingale essenzialmente limitate a valori in . Quindi rivolgiamo la nostra attenzione al legame tra misure multivoche e rappresentazioni di Riesz a valori multivoci. Infine, diamo la versione multivoca del teorema di Radon-Nikodym.
@article{BUMI_2004_8_7B_2_453_0, author = {Mohamed Zohry}, title = {On multivalued martingales, multimeasures and multivalued Radon-Nikodym property}, journal = {Bollettino dell'Unione Matematica Italiana}, volume = {7-A}, year = {2004}, pages = {453-468}, zbl = {1123.46302}, mrnumber = {2072947}, language = {en}, url = {http://dml.mathdoc.fr/item/BUMI_2004_8_7B_2_453_0} }
Zohry, Mohamed. On multivalued martingales, multimeasures and multivalued Radon-Nikodym property. Bollettino dell'Unione Matematica Italiana, Tome 7-A (2004) pp. 453-468. http://gdmltest.u-ga.fr/item/BUMI_2004_8_7B_2_453_0/
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