The spectral theorem for quaternionic unbounded normal operators based on the S-spectrum

Perturbation of the generator of a quaternionic evolution operator

(2015) Daniel Alpay et al.   Analysis and Applications

An extension of Herglotz's theorem to the quaternions

(2015) Daniel Alpay et al.   JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS

The Spectral Theorem for Unitary Operators Based on the S-Spectrum

(2015) Daniel Alpay et al.   Milan Journal of Mathematics

Semigroups over real alternative *-algebras: Generation theorems and spherical sectorial operators

(2015) Riccardo Ghiloni et al.   TRANSACTIONS OF THE AMERICAN MATHEMATICAL SOCIETY

Boundary Interpolation for Slice Hyperholomorphic Schur Functions

(2014) Khaled Abu-Ghanem et al.   INTEGRAL EQUATIONS AND OPERATOR THEORY

A New Resolvent Equation for the $$S$$ S -Functional Calculus

(2014) Daniel Alpay et al.   JOURNAL OF GEOMETRIC ANALYSIS

Pontryagin-de Branges-Rovnyak spaces of slice hyperholomorphic functions

(2013) Daniel Alpay et al.   JOURNAL D ANALYSE MATHEMATIQUE

CONTINUOUS SLICE FUNCTIONAL CALCULUS IN QUATERNIONIC HILBERT SPACES

(2013) RICCARDO GHILONI et al.   REVIEWS IN MATHEMATICAL PHYSICS

Krein–Langer Factorization and Related Topics in the Slice Hyperholomorphic Setting

(2012) Daniel Alpay et al.   JOURNAL OF GEOMETRIC ANALYSIS

The quaternionic evolution operator

(2011) Fabrizio Colombo et al.   ADVANCES IN MATHEMATICS

Schur Functions and Their Realizations in the Slice Hyperholomorphic Setting

(2011) Daniel Alpay et al.   INTEGRAL EQUATIONS AND OPERATOR THEORY

On the formulations of the quaternionic functional calculus

(2010) Fabrizio Colombo et al.   JOURNAL OF GEOMETRY AND PHYSICS

On Some Properties of the Quaternionic Functional Calculus

(2009) Fabrizio Colombo et al.   JOURNAL OF GEOMETRIC ANALYSIS