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2 050 (0,103s)

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Convergent normal form for real hypersurfaces at a generic Levi-degeneracy

normal form for a Levi-degenerate hypersurface. As an application of the convergence-analytic hypersurfaces with a generic Levi-degeneracy. As another application, we the Levi-degeneracy set that...

Pure mathematics

  • 2019
  • Jimp
  • Link
Result

HIGHER ORDER SYMMETRIES OF REAL HYPERSURFACES IN C-3

We study nonlinear automorphisms of Levi degenerate hypersurfaces of finite the origin of nonlinear automorphisms of Levi degenerate hypersurfaces, formulated fields of arbitrarily high degree, wh...

BA - Obecná matematika

  • 2016
  • Jx
  • Link
Result

Higher Order invariants of Levi Degenerate Hypersurfaces

We characterize Levi degenerate manifolds of finite type with finite local automorphism groups. The Kohn-Nirenberg phenomenon in dimensions greater then two is investigated....

BA - Obecná matematika

  • 2010
  • Jx
Result

Regularity of CR-mappings of codimension one into Levi-degenerate hypersurfaces

We provide regularity results for CR-maps from a real hypersur- face in n-dimensional complex space to a Levi-degenerate target hypersurface in a n + 1-dimensional space. We address both the real-analytic and the smooth cas...

Pure mathematics

  • 2021
  • Jimp
  • Link
Result

Local equivalence of symmetric hypersurfaces in C^2

the local equivalence problem for symmetric Levi degenerate hypersurfaces of finite type in $ mathbb{C}^2$. The results give complete normalizations for such hypersurfaces, which respect the symmetries. In particu...

BA - Obecná matematika

  • 2010
  • Jx
Result

Infinitesimal CR automorphisms for a class of polynomial models

We study infinitesimal CR automorphisms of Levi degenerate hypersurfaces. We illustrate our recent general results on a class of concrete examples, polynomial models in C^3. We classify such models according to their Lie al...

Pure mathematics

  • 2017
  • Jimp
  • Link
Result

Normal forms for hypersurfaces of finite type in C^2

We construct normal forms for Levi degenerate hypersurfaces of finite type in $mathbb{C}^2$. As one consequence, an explicit solution to the problem of local biholomorphic equivalence is obtained. Another consequence determ...

BA - Obecná matematika

  • 2005
  • Jx
Result

Degenerate hypersurfaces with a two-parametric family of automorphisms

We give a complete classification of Levi-degenerate hypersurfaces of finite type in C^2 with two-dimensional symmetry groups. Our analysis is based forsuch hypersurfaces, which follows from the construction of Che...

BA - Obecná matematika

  • 2009
  • Jx
Result

Chern-Moser operators and polynomial models in CR geometry

We consider the fundamental invariant of a real hypersurface in C-N - its holomorphic symmetry group - and analyze its structure at a point of degenerate Levi form. Generalizing the Chern-Moser operator to hypersurfaces...

BA - Obecná matematika

  • 2014
  • Jx
  • Link
Result

Remarks on the Symmetries of a Model Hypersurface

following from a generalization of the Chern—Moser theory to Levi degenerate hypersurfaces with polynomial models, as obtained in [30]. We formulate the jet determination results for finitely smooth hypersurfaces ...

Pure mathematics

  • 2022
  • Jimp
  • Link
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