The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The goal of this article is to study the algebra of a conditional type operators on such that each of members of has its range contained in the kernel of a conditional expectation E. We present characterizations of this algebra in terms of (φ0)0‐type sub‐sigma algebras of Σ.
In this paper we consider the following Square Root Problem for measures: Given a positive probability Borel measure μ (supported on an interval ), does there exist a positive Borel measure ν such that holds? (Here * denotes the multiplicative convolution, properly defined on .) This problem is intimately connected to the subnormality of the Aluthge transform of a unilateral weighted...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.