Uniformly continuous cosine families properties around weak Demicompactness concept
نویسندگان
چکیده
In this paper, we use the concept of weak demicompactness in order to give some properties for uniformly continuous cosine families. Our theoretical results will be illustrated by investigating spectral inclusion a family an upper semi-Fredholm spectrum.
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ژورنال
عنوان ژورنال: Hacettepe journal of mathematics and statistics
سال: 2022
ISSN: ['1303-5010']
DOI: https://doi.org/10.15672/hujms.1035373