The search session has expired. Please query the service again.

The search session has expired. Please query the service again.

Displaying similar documents to “First class selectors for weakly upper semi-continuous multi-valued maps in Banach spaces.”

Averaging operators and set-valued maps

Valov, Vesko (2014)

Mathematica Balkanica New Series

Similarity:

MSC 2010: 54C35, 54C60. We investigate maps admitting, in general, non-linear averaging operators. Characterizations of maps admitting a normed, weakly additive averaging operator which preserves max (resp., min) and weakly preserves min (resp., max) is obtained. We also describe set-valued maps into completely metrizable spaces admitting lower semi-continuous selections. As a corollary, we obtain a description of surjective maps with a metrizable kernel and complete fibers...

Semi-open sets in biclosure spaces

Jeeranunt Khampakdee, Chawalit Boonpok (2009)

Discussiones Mathematicae - General Algebra and Applications

Similarity:

The aim of this paper is to introduce and study semi-open sets in biclosure spaces. We define semi-continuous maps and semi-irresolute maps and investigate their behavior. Moreover, we introduce pre-semi-open maps in biclosure spaces and study some of their properties.