Testing composite hypotheses via convex duality

Birgit Rudloff, Ioannis Karatzas

Publication: Scientific journalJournal articlepeer-review


We study the problem of testing composite hypotheses versus composite alternatives, using a convex duality approach. In contrast to classical results obtained by Krafft and Witting (Z. Wahrsch. Verw. Gebiete 7 (1967) 289–302), where sufficient optimality conditions are derived via Lagrange duality, we obtain necessary and sufficient optimality conditions via Fenchel duality under compactness assumptions. This approach also differs from the methodology developed in Cvitanic ́ and Karatzas (Bernoulli 7 (2001) 79–97).
Original languageEnglish
Pages (from-to)1224 - 1239
Issue number4
Publication statusPublished - 2010

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