Construction and Stability of Riesz Bases in Direct Sum Spaces
DOI:
https://doi.org/10.26713/cma.v17i3.3635Keywords:
Riesz basis; Stability; Sturm-Liouville problem; eigenfunction sequenceAbstract
This paper constructs Riesz bases in direct sum spaces and studies their stability. The
analysis is based on the stability property of sine and cosine Riesz bases in the Hilbert space
L2[a,b].
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