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Bibliographic Details
Main Authors: Das, Purba, Kim, Donghan
Format: Preprint
Published: 2024
Subjects:
Online Access:https://arxiv.org/abs/2409.00652
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Table of Contents:
  • We study the concept of (generalized) $p$-th variation of a real-valued continuous function along a general class of refining sequence of partitions. We show that the finiteness of the $p$-th variation of a given function is closely related to the finiteness of $\ell^p$-norm of the coefficients along a Schauder basis, similar to the fact that Hölder coefficient of the function is connected to $\ell^{\infty}$-norm of the Schauder coefficients. This result provides an isomorphism between the space of $α$-Hölder continuous functions with finite (generalized) $p$-th variation along a given partition sequence and a subclass of infinite-dimensional matrices equipped with an appropriate norm, in the spirit of Ciesielski.