In this paper we prove a quaternionic positive real lemma as well as its generalized version, in case the associated kernel has negative squares for slice hyperholomorphic functions. We consider the case of functions with positive real part in the half space of quaternions with positive real part, as well as the case of (generalized) Schur functions in the open unit ball.

Positive and Generalized Positive Real Lemma for Slice Hyperholomorphic Functions

Colombo F.;Sabadini I.
2019-01-01

Abstract

In this paper we prove a quaternionic positive real lemma as well as its generalized version, in case the associated kernel has negative squares for slice hyperholomorphic functions. We consider the case of functions with positive real part in the half space of quaternions with positive real part, as well as the case of (generalized) Schur functions in the open unit ball.
2019
Half space; Kalman–Yakubovich–Popov lemma; Negative squares; Positive real functions; Slice hyperholomorphic functions; Unit ball
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/1126673
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