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Ohne ZusammenfassungHerrnFriedrich Lösch zum 60. Geburstag am 10. Dezember 1963 gewidmetDie Arbeit wurde unterstützt durch den National Research Council of Canada, als der Verfasser an der University of Western Ontario war.  相似文献   

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In this article the topologically exact sequences of locally convex spaces are characterized for which for every locally convex space F the map id : FE F Q is a homomorphism, or equivalently, the map id L : FK F E is a topological injection. This is motivated by the problem of lifting Q-valued functions with certain given properties to E-valued functions with the same or slightly weaker properties, which may also be considered as the investigation of parameter dependences of solutions of linear (differential) equations. Applications to partial differential equations and to Fredholm functions are given.  相似文献   

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