All complete intersection Calabi-Yau four-folds

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود 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

CFT’s From Calabi-Yau Four-folds

We consider F/M/Type IIA theory compactified to four, three, or two dimensions on a Calabi-Yau four-fold, and study the behavior near an isolated singularity in the presence of appropriate fluxes and branes. We analyze the vacuum and soliton structure of these models, and show that near an isolated singularity, one often generates massless chiral superfields and a superpotential, and in many in...

متن کامل

Two Two - Dimensional Supergravity Theories from Calabi - Yau Four - Folds

We consider two-dimensional supergravity theories with four supercharges constructed from compactification of Type II string theory on a generic Calabi-Yau four-fold. In Type IIA and Type IIB cases, respectively, new superspace formulations of N = (2, 2) and N = (0, 4) dilaton supergravities are found and their coupling to matter multiplets is discussed. 1. Introduction For a long time, compact...

متن کامل

Rigid curves in complete intersection Calabi-Yau threefolds

Working over the complex numbers, we study curves lying in a complete intersection K3 surface contained in a (nodal) complete intersection Calabi-Yau threefold. Under certain generality assumptions, we show that the linear system of curves in the surface is a connected componend of the the Hilbert scheme of the threefold. In the case of genus one, we deduce the existence of infinitesimally rigi...

متن کامل

Enumerative Geometry of Calabi-Yau 5-Folds

The original recursions for A2(d) ≡ nd(ψ̃, H) and B1(d1, d2) ≡ nd1d2(|;H2) do not involve any of the other terms. Using Lemma 1, the formulas (A.2) and (A.3) can be shown to satisfy the two recursions. The original formula for A1(d) ≡ nd(ψ̃H) expresses A1(d) in terms of B1(d1, d2). The formula (A.1) follows from (A.3) and Lemma 2. Originally, there are also the terms nd(ψ̃H,H ), but it is not hard...

متن کامل

Limit stable objects on Calabi - Yau 3 - folds

In this paper, we introduce new enumerative invariants of curves on Calabi-Yau 3-folds via certain stable objects in the derived category of coherent sheaves. We introduce the notion of limit stability on the category of perverse coherent sheaves, a subcategory in the derived category, and construct the moduli spaces of limit stable objects. We then define the counting invariants of limit stabl...

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 High Energy Physics

سال: 2013

ISSN: 1029-8479

DOI: 10.1007/jhep07(2013)070