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Quarterly of Applied Mathematics

Quarterly of Applied Mathematics

Online ISSN 1552-4485; Print ISSN 0033-569X

   
 
 

 

Corrugated versus smooth uniqueness and stability of negatively curved isometric immersions


Author: Cleopatra Christoforou
Journal: Quart. Appl. Math. 81 (2023), 533-551
MSC (2020): Primary 53C42, 35L65, 35A02, 58K25, 57R42, 53C21, 35B35, 53C45
DOI: https://doi.org/10.1090/qam/1663
Published electronically: March 30, 2023
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Abstract | References | Similar Articles | Additional Information

Abstract: We prove uniqueness of smooth isometric immersions within the class of negatively curved corrugated two-dimensional immersions embedded into $\mathbb {R}^3$. The main tool we use is the relative entropy method employed in the setting of differential geometry for the Gauss-Codazzi system. The result allows us to compare also two solutions to the Gauss-Codazzi system that correspond to a smooth and a $C^{1,1}$ isometric immersion of not necessarily the same metric and prove continuous dependence of their second fundamental forms in terms of the metric and initial data in $L^2$.


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Additional Information

Cleopatra Christoforou
Affiliation: Department of Mathematics and Statistics, University of Cyprus, Nicosia 1678, Cyprus
MR Author ID: 776610
ORCID: 0000-0003-4467-3322
Email: christoforou.cleopatra@ucy.ac.cy

Keywords: Isometric immersions, metric, stability, uniqueness, relative entropy, corrugated, curvature
Received by editor(s): January 24, 2023
Received by editor(s) in revised form: February 4, 2023
Published electronically: March 30, 2023
Dedicated: Dedicated to my advisor Constantine Dafermos on the occasion of his 80th birthday
Article copyright: © Copyright 2023 Brown University