Hermitian Clifford Analysis

Irene Sabadini () and Frank Sommen
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Irene Sabadini: Politecnico di Milano, Dipartimento di Matematica
Frank Sommen: Ghent University, Clifford Research Group, Faculty of Sciences

Chapter 63 in Operator Theory, 2026, pp 1983-2011 from Springer

Abstract: Abstract This chapter gives an overview of some basic results on Hermitian Clifford analysis, a refinement of classical Clifford analysis dealing with functions in the kernel of two mutually adjoint Dirac operators invariant under the action of the unitary group. The set of these functions, called Hermitian monogenic, contains the set of holomorphic functions in several complex variables. The chapter discusses, among other results, the Fischer decomposition, the Cauchy–Kovalevskaya extension problem, the axiomatic radial algebra, and also some algebraic analysis of the system associated to Hermitian monogenic functions. While the Cauchy–Kovalevskaya extension problem can be carried out for the Hermitian monogenic system, this system imposes severe constraints on the initial Cauchy data. There exists a subsystem of the Hermitian monogenic system in which these constraints can be avoided. This subsystem, called submonogenic system, will also be discussed in the chapter.

Keywords: Witt basis; Hermitian Dirac operators; Hermitian monogenic functions; Radial algebra; Fischer decomposition; Cauchy–Kovalevskaya extension; Algebraic analysis (search for similar items in EconPapers)
Date: 2026
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DOI: 10.1007/978-3-032-16356-1_13

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