Date of Award

12-24-2025

Date Published

January 2026

Degree Type

Dissertation

Degree Name

Doctor of Philosophy (PhD)

Department

Mathematics

Advisor(s)

Jani Onninen

Abstract

In this dissertation, we are interested in a study of the minimizers to the $L^p$-mean distortion among Sobolev homeomorphisms $f:\mathbb T_*\to \mathbb T$ of finite distortion between embedded tori $\mathbb T = \mathbb T(R,r), \mathbb T_* = \mathbb T(R_*,r_*)$. For such mappings, the $L^p$-mean distortion for $1\le p < \infty$ is defined as \[ \int_{\mathbb T_*} K_f^p. \] We will show that the minimizer within a specific homotopy class to the $L^p$-mean distortion between embedded tori always exists. We will use free Lagrangians, whose integral only depends on the homotopy type of the function.

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Open Access

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