Infinitesimal Deformations of Cusp Singularities
نویسندگان
چکیده
منابع مشابه
Infinitesimal Deformations and Obstructions for Toric Singularities
The obstruction space T 2 and the cup product T 1×T 1 → T 2 are computed for toric singularities.
متن کاملInfinitesimal Automorphisms and Deformations of Parabolic Geometries
We show that infinitesimal automorphisms and infinitesimal deformations of parabolic geometries can be nicely described in terms of the twisted de–Rham sequence associated to a certain linear connection on the adjoint tractor bundle. For regular normal geometries, this description can be related to the underlying geometric structure using the machinery of BGG sequences. In the locally flat case...
متن کاملInfinitesimal Deformations of Harmonic Maps and Morphisms
Harmonic maps are mappings between Riemannian manifolds which extremize a natural energy functional. They have been studied for many years in differential geometry, and in particle physics as nonlinear sigma models. We shall report on recent progress in understanding their infinitesimal deformations, the so-called Jacobi fields. It is important to know whether the Jacobi fields along harmonic m...
متن کاملExplicit resolutions of cubic cusp singularities
Resolutions of cusp singularities are crucial to many techniques in computational number theory, and therefore finding explicit resolutions of these singularities has been the focus of a great deal of research. This paper presents an implementation of a sequence of algorithms leading to explicit resolutions of cusp singularities arising from totally real cubic number fields. As an example, the ...
متن کاملDegenerations of elliptic curves and cusp singularities
This paper gives more or less explicit equations for all twodimensional cusp singularities of embedding dimension at least 4. They are closely related to Felix Klein’s equations for universal curves with level n structure. The main technical result is a description of the versal deformation of an n-gon in P. The final section contains the equations for smoothings of simple elliptic singularitie...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Hokkaido Mathematical Journal
سال: 1986
ISSN: 0385-4035
DOI: 10.14492/hokmj/1381518219