منابع مشابه
On Reflexivity and Hyperreflexivity of Some Spaces of Intertwining Operators
Let T, T ′ be weak contractions (in the sense of Sz.-Nagy and Foiaş), m, m the minimal functions of their C0 parts and let d be the greatest common inner divisor of m, m . It is proved that the space I(T, T ) of all operators intertwining T, T ′ is reflexive if and only if the model operator S(d) is reflexive. Here S(d) means the compression of the unilateral shift onto the space H⊖dH. In parti...
متن کاملKant and Hegel on Aesthetic Reflexivity
The paper aims at reevaluating a conception of the aesthetic that was developed by Kant and Hegel but that has been widely neglected due to the fact that their positions in aesthetics have been wrongly considered to be antagonistic to one another. The conception states that the aesthetic is a practice of reflecting on other human practices. Kant was the first to articulate this conception, but ...
متن کاملA Reflexivity Theorem for Weakly Closed Subspaces of Operators
It was proved in [4] that the ultraweakly closed algebras generated by certain contractions on Hubert space have a remarkable property. This property, in conjunction with the fact that these algebras are isomorphic to Hx, was used in [3] to show that such ultraweakly closed algebras are reflexive. In the present paper we prove an analogous result that does not require isomorphism with Hx, and a...
متن کاملBeyond Maxi-Consistent Argumentation Operators
The question whether Dung’s abstract argumentation theory can be instantiated with classical propositional logic has drawn a considerable amount of attention among scientists in recent years. It was shown by Cayrol in 1995 that if direct undercut is used, then stable extensions of an argumentation system correspond exactly to maximal (for set inclusion) consistent subsets of the knowledge base ...
متن کاملMaxi-Consistent Operators in Argumentation
This paper studies an instantiation of Dung-style argumentation system with classical propositional logic. Our goal is to explore the link between the result obtained by using argumentation to deal with an inconsistent knowledge base and the result obtained by using maximal consistent subsets of the same knowledge base. Namely, for a given attack relation and semantics, we study the question: d...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Integral Equations and Operator Theory
سال: 2011
ISSN: 0378-620X,1420-8989
DOI: 10.1007/s00020-011-1894-z