Involutive scroll structures on solutions of 4D dispersionless integrable hierarchies

Fuente: arXiv
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Main Authors: Ferapontov, Evgeny, Kruglikov, Boris
Format: Preprint
Published: 2025
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author Ferapontov, Evgeny
Kruglikov, Boris
author_facet Ferapontov, Evgeny
Kruglikov, Boris
contents A rational normal scroll structure on an $(n+1)$-dimensional manifold $M$ is defined as a field of rational normal scrolls of degree $n-1$ in the projectivised cotangent bundle $\mathbb{P}T^*M$. We show that geometry of this kind naturally arises on solutions of various 4D dispersionless integrable hierarchies of heavenly type equations. In this context, rational normal scrolls coincide with the characteristic varieties (principal symbols) of the hierarchy. Furthermore, such structures automatically satisfy an additional property of involutivity. Our main result states that involutive scroll structures are themselves governed by a dispersionless integrable hierarchy, namely, the hierarchy of conformal self-duality equations.
format Preprint
id arxiv_https___arxiv_org_abs_2503_10897
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Involutive scroll structures on solutions of 4D dispersionless integrable hierarchies
Ferapontov, Evgeny
Kruglikov, Boris
Exactly Solvable and Integrable Systems
Mathematical Physics
Differential Geometry
A rational normal scroll structure on an $(n+1)$-dimensional manifold $M$ is defined as a field of rational normal scrolls of degree $n-1$ in the projectivised cotangent bundle $\mathbb{P}T^*M$. We show that geometry of this kind naturally arises on solutions of various 4D dispersionless integrable hierarchies of heavenly type equations. In this context, rational normal scrolls coincide with the characteristic varieties (principal symbols) of the hierarchy. Furthermore, such structures automatically satisfy an additional property of involutivity. Our main result states that involutive scroll structures are themselves governed by a dispersionless integrable hierarchy, namely, the hierarchy of conformal self-duality equations.
title Involutive scroll structures on solutions of 4D dispersionless integrable hierarchies
topic Exactly Solvable and Integrable Systems
Mathematical Physics
Differential Geometry
url https://arxiv.org/abs/2503.10897