ISOMETRIC AND ISOMETRIC- m OPERATORS
DOI:
https://doi.org/10.24127/ajpm.v6i3.1081Kata Kunci:
Adjoint Operators, Isometric Operators, Isometric- m OperatorsAbstrak
This paper presents the definition, samples, and natures of isometric and isometric- m algebra operator for some  in  Hilbert space. In additions, the relationship of both operators will also be examined. To investigate natures of isometric and isometric- m operators, adjoint operators concepts and natures are required. Adjoint operator concept underlies isometric operator’s natures. Later, according to the concept, isometrc operator is expanded into isometric- m operators for some in Hilbert space. The result unveils algebra natures of isometric and isometric- m operators consisting of composition operators natures and multiplication with scalar. Furthermore, if T operators is isometric then T operators isometric- m for some .
Referensi
Akhiezer, N.I. and Glazman, M. 2013. Theory of Linear Operators in Hilbert Spaces. New York: Dover Publication, Inc.
Berberian, S.K.1961. Introduction to Hilbert Spaces. New York: Oxford University Press.
Kreyszig, E.1978. Introductory Functional Analysis with Applications. New York: John Wiley and Sons.
Saddi, Adel and Ould Ahmed Mahmoud Sid Ahmed . 2010. m- Partial Isometries On Hilbert Spaces. Internat J. Functional Analysis, Operator Theory,and Applications . Volume 2, No 1, Pages 67-83, 7 September. Dapat diakses di http://pphmj.com/journals/ijaota.htm.
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