Embeddings With Multiple Regularity

نویسنده

  • Gordana Stojanovic
چکیده

We introduce (k, l)-regular maps, which generalize two previously studied classes of maps: affinely k-regular maps and totally skew embeddings. We exhibit some explicit examples and obtain bounds on the least dimension of a Euclidean space into which a manifold can be embedded by a (k, l)-regular map. The problem can be regarded as an extension of embedding theory to embeddings with certain nondegeneracy conditions imposed, and is related to approximation theory.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Veronese transform, and Castelnuovo-Mumford regularity of modules

1 Veronese rings, Segre embeddings or more generally Segre-Veronese embeddings are very important rings in Algebraic Geometry. In this paper we present an original, elementary way to compute the Hilbert-Poincare series of these rings, as a consequence we compute their Castelnuovo-Mumford regularity, and also the leading term of the h−vector. Moreover, we can compute the Castelnuovo-Mumford regu...

متن کامل

Regularity on Abelian Varieties Ii: Basic Results on Linear Series and Defining Equations

We apply the theory of M-regularity developed in [PP] to the study of linear series given by multiples of ample line bundles on abelian varieties. We define an invariant of a line bundle, called M-regularity index, which is seen to govern the higher order properties and (partly conjecturally) the defining equations of such embeddings. We prove a general result on the behavior of the defining eq...

متن کامل

Regular Rapidly Decreasing Nonlinear Generalized Functions. Application to Microlocal Regularity

We present new types of regularity for nonlinear generalized functions, based on the notion of regular growth with respect to the regularizing parameter of the Colombeau simplified model. This generalizes the notion of G∞-regularity introduced by M. Oberguggenberger. A key point is that these regularities can be characterized, for compactly supported generalized functions, by a property of thei...

متن کامل

Profile decompositions for critical Lebesgue and Besov space embeddings

Profile decompositions for “critical” Sobolev-type embeddings are established, allowing one to regain some compactness despite the non-compact nature of the embeddings. Such decompositions have wide applications to the regularity theory of nonlinear partial differential equations, and have typically been established for spaces with Hilbert structure. Following the method of S. Jaffard, we treat...

متن کامل

Adjoint Line Bundles and Syzygies of Projective Varieties

Let X be a smooth projective variety and let K be the canonical divisor of X. In this paper, we study embeddings of X given by adjoint line bundles K ⊗ L, where L is an ample invertible sheaf. When X is a regular surface, we obtain a numerical criterion for K ⊗ L to have property Np. In particular, we prove Mukai’s conjecture for regular anticanonical surfaces. When X is a regular variety of ar...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2005