Abstract:
It is observed that the Dirichlet ring admits a representation in an infinite-dimensional matrix algebra. The resulting matrices are subsequently used in the construction of nonorthogonal Riesz bases in a separable Hilbert space. This
framework enables custom design of a plethora of bases with interesting features. Remarkably, the representation of signals in any one of these bases is numerically implementable via fast algorithms.
Keywords:
unconditional basis, Riesz basis, fast transform, Dirichlet series.
Citation:
A. Sowa, “The Dirichlet Ring and Unconditional Bases in L2[0,2π]”, Funktsional. Anal. i Prilozhen., 47:3 (2013), 75–81; Funct. Anal. Appl., 47:3 (2013), 227–232