3 papers
math.FA2018
Controlled weaving frames in Hilbert spaces
Reza Rezapour, Asghar Rahimi, E. Osgooei +1
In this paper, we first introduce the notion of controlled weaving K-g-frames in Hilbert spaces. Then, we present sufficient conditions for controlled weaving K-g-frames in separab…
math.FA2015
Characterizing of Inner Product Spaces by the Mapping
Hossein Dehghan
For the vectors and in a normed linear spaces , the mapping is defined by . In this note, comparing the mappings…
math.FA2013
A Characterization of Inner Product Spaces Related to the Skew-Angular Distance
Hossein Dehghan
A new refinement of the triangle inequality is presented in normed linear spaces. Moreover, a simple characterization of inner product spaces is obtained by using the skew-angular…