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相关论文: The Hull-Strominger system and the Anomaly flow on…

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The Hull-Strominger system for supersymmetric vacua of the heterotic string allows general unitary Hermitian connections with torsion and not just the Chern unitary connection. Solutions on unimodular Lie groups exploiting this flexibility…

微分几何 · 数学 2017-05-30 Duong H. Phong , Sebastien Picard , Xiangwen Zhang

We study the Anomaly flow on $2$-step nilmanifolds with respect to any Hermitian connection in the Gauduchon line. In the case of flat holomorphic bundle, the general solution to the Anomaly flow is given for any initial invariant Hermitian…

微分几何 · 数学 2021-08-25 Mattia Pujia , Luis Ugarte

While the Anomaly flow was originally motivated by string theory, its zero slope case is potentially of considerable interest in non-Kahler geometry, as it is a flow of conformally balanced metrics whose stationary points are precisely…

微分几何 · 数学 2018-05-25 Duong H. Phong , Sebastien Picard , Xiangwen Zhang

The Anomaly flow is shown to converge on toric fibrations with the Fu-Yau ansatz, for both positive and negative values of the slope parameter $\alpha'$. This implies both results of Fu and Yau on the existence of solutions for…

微分几何 · 数学 2018-03-28 Duong H. Phong , Sebastien Picard , Xiangwen Zhang

The Anomaly flow is a flow which implements the Green-Schwarz anomaly cancellation mechanism originating from superstring theory, while preserving the conformally balanced condition of Hermitian metrics. There are several versions of the…

微分几何 · 数学 2018-03-14 Duong H. Phong , Sebastien Picard , Xiangwen Zhang

This is a survey on the Strominger system and a geometric flow known as the anomaly flow. We will discuss various aspects of non-K\"ahler geometry on Calabi-Yau threefolds. Along the way, we discuss balanced metrics and balanced classes,…

微分几何 · 数学 2025-07-11 Sébastien Picard

We show that for two dimensional manifolds M with negative Euler characteristic there exists subsets of the space of smooth Riemannian metrics which are invariant and either parabolic or backwards-parabolic for the 2nd order RG flow. We…

高能物理 - 理论 · 物理学 2009-05-08 Todd A. Oliynyk

Let $(M,J,\Omega)$ be a closed polarized complex manifold of K\"ahler type. Let $G$ be the maximal compact subgroup of the automorphism group of $(M,J)$. On the space of K\"ahler metrics that are invariant under $G$ and represent the…

微分几何 · 数学 2007-05-23 Santiago R. Simanca

We study the asymptotic behavior of the pluriclosed flow in the case of left-invariant Hermitian structures on Lie groups. We prove that solutions on 2-step nilpotent Lie groups and on almost-abelian Lie groups converge, after a suitable…

微分几何 · 数学 2019-02-13 Romina M. Arroyo , Ramiro A. Lafuente

In this paper, we provide a classification of steady solutions to two-dimensional incompressible Euler equations in terms of the set of flow angles. The first main result asserts that the set of flow angles of any bounded steady flow in the…

偏微分方程分析 · 数学 2024-05-27 Changfeng Gui , Chunjing Xie , Huan Xu

This is a survey of some of the recent developments on the geometric and analytic aspects of the Anomaly flow. It is a flow of $(2,2)$-forms on a $3$-fold which was originally motivated by string theory and the need to preserve the…

微分几何 · 数学 2018-07-10 Duong H. Phong , Sebastien Picard , Xiangwen Zhang

Anomaly, a generic feature of relativistic quantum field theory, is shown to be present in non-relativistic classical ideal fluid. A new result is the presence of anomalous terms in current algebra, an obvious analogue of Schwinger terms…

高能物理 - 理论 · 物理学 2022-08-02 Arpan Krishna Mitra , Subir Ghosh

In orbifold gauge theory and gauge-Higgs unification models, gauge anomaly flows with an Aharonov-Bohm phase $\theta_H$ in the fifth dimension. We analyze $SU(2)$ gauge theory with doublet fermions in the flat $M^4 \times (S^1/Z_2)$…

高能物理 - 理论 · 物理学 2023-05-25 Yutaka Hosotani

In this paper, we study the Ricci flow of solvmanifolds whose Lie algebra has an abelian ideal of codimension one, by using the bracket flow. We prove that solutions to the Ricci flow are immortal, the omega-limit of bracket flow solutions…

微分几何 · 数学 2012-11-16 Romina M. Arroyo

A geometric flow on $(2,2)$-forms is introduced which preserves the balanced condition of metrics, and whose stationary points satisfy the anomaly equation in Strominger systems. The existence of solutions for a short time is established,…

微分几何 · 数学 2017-04-11 Duong H. Phong , Sebastien Picard , Xiangwen Zhang

We study invariant solutions to the Positive Hermitian Curvature Flow, introduced by Ustinovskiy, on complex Lie groups. We show in particular that the canonical scale-static metrics on the special linear groups, arising from the Killing…

微分几何 · 数学 2021-12-20 James Stanfield

In this paper, we introduce a geometric flow for Lagrangian submanifolds in a K\"ahler manifold that stays in its initial Hamiltonian isotopy class and is a gradient flow for volume. The stationary solutions are the Hamiltonian stationary…

微分几何 · 数学 2024-09-25 Jingyi Chen , Micah Warren

We investigate stability conditions related to the existence of solutions of the Hull-Strominger system with prescribed balanced class. We build on recent work by the authors, where the Hull-Strominger system is recasted using non-Hermitian…

微分几何 · 数学 2023-01-20 Mario Garcia-Fernandez , Raul Gonzalez Molina

We introduce a notion of stability for non-autonomous Hamiltonian flows on two-dimensional annular surfaces. This notion of stability is designed to capture the sustained twisting of particle trajectories. The main Theorem is applied to…

偏微分方程分析 · 数学 2024-08-30 Theodore D. Drivas , Tarek M. Elgindi , In-Jee Jeong

We consider viscous two-dimensional steady flows of incompressible fluids past doubly periodic arrays of solid obstacles. In a class of such flows, the autocorrelations for the Lagrangian observables decay in accordance with the power law,…

统计力学 · 物理学 2007-05-23 Michael A. Zaks , Arthur V. Straube
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