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20052025
most citedCo-evolution of platform architecture, platform services, and platform governance: Expanding the platform value of industrial digital platforms

360 citations

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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

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2 papers · 1 filter

math.SP2006★ 103 cited

Boundary relations and generalized resolvents of symmetric operators

Vladimir Derkach, Seppo Hassi, Mark Malamud +1

The Kre\uın-Naimark formula provides a parametrization of all selfadjoint exit space extensions of a, not necessarily densely defined, symmetric operator, in terms of maximal dissi…

math.SP2005

A general realization theorem for matrix-valued Herglotz-Nevanlinna functions

Sergey Belyi, Seppo Hassi, Henk de Snoo +1

New special types of stationary conservative impedance and scattering systems, the so-called non-canonical systems, involving triplets of Hilbert spaces and projection operators, a…