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DUALITY OF (2, 3, 5)-DISTRIBUTIONS AND LAGRANGIAN CONE STRUCTURES

Published online by Cambridge University Press:  23 January 2020

GOO ISHIKAWA
Affiliation:
Hokkaido University, Sapporo060-0810, Japan email ishikawa@math.sci.hokudai.ac.jp
YUMIKO KITAGAWA
Affiliation:
Oita National College of Technology, Oita870-0152, Japan email kitagawa@oita-ct.ac.jp
ASAHI TSUCHIDA
Affiliation:
Institute of Mathematics, Polish Academy of Science, Warszawa00-656, Poland email atsuchida@impan.pl
WATARU YUKUNO
Affiliation:
Hokkaido University, Sapporo060-0810, Japan email yukuwata@math.sci.hokudai.ac.jp

Abstract

As was shown by a part of the authors, for a given $(2,3,5)$-distribution $D$ on a five-dimensional manifold $Y$, there is, locally, a Lagrangian cone structure $C$ on another five-dimensional manifold $X$ which consists of abnormal or singular paths of $(Y,D)$. We give a characterization of the class of Lagrangian cone structures corresponding to $(2,3,5)$-distributions. Thus, we complete the duality between $(2,3,5)$-distributions and Lagrangian cone structures via pseudo-product structures of type $G_{2}$. A local example of nonflat perturbations of the global model of flat Lagrangian cone structure which corresponds to $(2,3,5)$-distributions is given.

Type
Article
Copyright
© 2020 Foundation Nagoya Mathematical Journal

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Footnotes

The first author was supported by JSPS KAKENHI No. 15H03615 and No. 15K13431.

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