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2021/98/3-4 (1) — DOI: 10.5486/PMD.2021.8757_2 — pp. 259-276

Functional analysis behind a family of multidimensional continued fractions. Part II

Authors: Ilya Amburg and Thomas Garrity

Abstract:

This paper is a direct continuation of "Functional analysis behind a family of multidimensional continued fractions. Part I'', in which we started the exploration of the functional analysis behind the transfer operators for triangle partition maps, a family that includes many, if not most, well-known multidimensional continued fraction algorithms. This allows us now to find eigenfunctions of eigenvalue 1 for transfer operators associated with select triangle partition maps on specified Banach spaces. We proceed to prove that the transfer operators, viewed as acting on one-dimensional families of Hilbert spaces, associated with select triangle partition maps are nuclear of trace class zero. We finish by deriving Gauss—Kuzmin distributions associated with select triangle partition maps.

Keywords: continued fractions, number theory, triangle partition maps, functional analysis

Mathematics Subject Classification: 11J70, 37C30