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A generalization of Bessel’s inequality and Parseval’s identity

Gunawan H.b

a
b Department of Mathematics, Bandung Institute of Technology, Indonesia

Abstract

We present an inequality and an identity involving Gram determinants, which can be viewed as a generalization of Bessel’s and Parseval’s, respectively. © Akadémiai Kiadó.

Author keywords

Indexed keywords

Bessel’s inequality,Hilbert spaces,n-inner products,Parseval’s identity

Funding details

DOI

https://doi.org/10.1023/A:1019640429393

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