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20092026
most citedOn the class SI of J-contractive functions intertwining solutions of linear differential equations

5 citations · 7 across the 4 of their papers we have counts for

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math.FA2026

Operator model and a trace formula for pairs of unitary operators

Daniel Alpay, Fabrizio Colombo, Izchak Lewkowicz +1

Using the theory of reproducing kernel Hilbert spaces introduced by L. de Branges and J. Rovnyak we prove a trace formula for pairs of operators in Hilbert space in terms of a Cara…