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20002003
most citedRational hyperholomorphic functions in (\mathbb R^4)

1 citations · 2 across the 3 of their papers we have counts for

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math.FA2003★ 1 cited

Rational hyperholomorphic functions in (\mathbb R^4)

D. Alpay, M. Shapiro, D. Volok

We introduce the notion of rationality for hyperholomorphic functions (functions in the kernel of the Cauchy-Fueter operator). Following the case of one complex variable, we give t…

math.OA2003★ 1 cited

Spectral factorization in the non-stationary Wiener algebra

D. Alpay, H. Attia, S. Ben-Porat +1

We define the non-stationary analogue of the Wiener algebra and prove a spectral factorization theorem in this algebra.

math.OA2003

Point evaluation and Hardy space on a homogeneous tree

Daniel Alpay, Dan Volok

We consider transfer functions of time--invariant systems as defined by Basseville, Benveniste, Nikoukhah and Willsky when the discrete time is replaced by the nodes of an homogene…