Principalization of ideals on toroidal orbifolds

نویسندگان
چکیده

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

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Compactification of M(atrix) theory on noncommutative toroidal orbifolds

It was shown by A. Connes, M. Douglas and A. Schwarz that noncommutative tori arise naturally in consideration of toroidal compactifications of M(atrix) theory. A similar analysis of toroidal Z2 orbifolds leads to the algebra Bθ that can be defined as a crossed product of noncommutative torus and the group Z2 . Our paper is devoted to the study of projective modules over Bθ ( Z2-equivariant pro...

متن کامل

Toroidal Orbifolds à la Vafa-Witten

We classify orbifolds obtained by taking the quotient of a three torus by Abelian extensions of Z/n×Z/n automorphisms, where each torus has a multiplicative Z/n action (n ∈ {3, 4, 6}). This ’completes’ the classification of orbifolds of the above type initiated by Donagi and Faraggi ([4]) and, Donagi and Wendland ([5]).

متن کامل

Toroidal Orbifolds, Gerbes and Group Cohomology

In this paper we compute the integral cohomology of certain semi–direct products of the form Z ⋊ G, arising from a linear G action on the n–torus, where G is a finite group. The main application is the complete calculation of torsion gerbes for six dimensional examples arising in string theory.

متن کامل

Resolved Toroidal Orbifolds and their Orientifolds

We discuss the resolution of toroidal orbifolds. For the resulting smooth Calabi–Yau manifolds, we calculate the intersection ring and determine the divisor topologies. In a next step, the orientifold quotients are constructed.

متن کامل

The Af Structure of Non Commutative Toroidal Z/4z Orbifolds

For any irrational θ and rational number p/q such that q|qθ−p| < 1, a projection e of trace q|qθ−p| is constructed in the the irrational rotation algebra Aθ that is invariant under the Fourier transform. (The latter is the order four automorphism U 7→ V 7→ U, where U, V are the canonical unitaries generating Aθ .) Further, the projection e is approximately central, the cut down algebra eAθe con...

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

ژورنال

عنوان ژورنال: Journal of the European Mathematical Society

سال: 2020

ISSN: 1435-9855

DOI: 10.4171/jems/997