71 citations · 177 across the 16 of their papers we have counts for
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math.FA2017
Construction of dynamical semigroups by a functional regularisation à la Kato
A. F. M. ter Elst, Valentin A. Zagrebnov
A functional version of the Kato one-parametric regularisation for the construction of a dynamical semigroup generator of a relative bound one perturbation is introduced. It does n…
math.FA2015★ 8 cited
Nonseparability and von Neumann's theorem for domains of unbounded operators
A. F. M. ter Elst, Manfred Sauter
A classical theorem of von Neumann asserts that every unbounded self-adjoint operator in a separable Hilbert space is unitarily equivalent to an operator in such th…
math.FA2014★ 11 cited
A generalisation of the form method for accretive forms and operators
A. F. M. ter Elst, Manfred Sauter, Hendrik Vogt
The form method as popularised by Lions and Kato is a successful device to associate m-sectorial operators with suitable elliptic or sectorial forms. McIntosh generalised the form…