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Related papers: Bochner-Kodaira Formulas and the Type IIA Flow

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In this short paper, we re-derive the Bochner formula for the Laplacian by considering local variations of volume. The derivation is rooted in the fact that the Laplacian of a function measures the volume variation along the flow of the…

Differential Geometry · Mathematics 2013-06-18 Christopher Lin

It is shown that bounds of all orders of derivative would follow from uniform bounds for the metric and the torsion 1-form, for a flow in non-K\"ahler geometry which can be interpreted as either a flow for the Type IIB string or the Anomaly…

Differential Geometry · Mathematics 2020-05-01 Teng Fei , Duong H. Phong , Sebastien Picard , Xiangwen Zhang

The Type IIA flow is a flow of 3-forms on a 6-dimensional symplectic manifold. It was introduced by Fei, Phong, Picard, and Zhang in \cite{FPPZb}. There is little known about the singularities of this flow in general. We formulate and prove…

Differential Geometry · Mathematics 2022-10-12 Nikita Klemyatin

In this article I will prove new representation for the Levi-Civita connection in terms of the stochastic flow corresponding to Brownian motion on manifold.

Probability · Mathematics 2008-02-25 M. Neklyudov

In this paper the dynamical stability of the Type IIA flow with no source near its stationary points is established. These stationary points had been shown previously by the authors to be Ricci-flat K\"ahler metrics on Calabi-Yau 3-folds.…

Differential Geometry · Mathematics 2022-01-03 Teng Fei , Duong H. Phong , Sebastien Picard , Xiangwen Zhang

A geometric flow on $6$-dimensional symplectic manifolds is introduced which is motivated by supersymmetric compactifications of the Type IIA string. The underlying structure turns out to be SU(3) holonomy, but with respect to the projected…

Differential Geometry · Mathematics 2020-11-10 Teng Fei , Duong H. Phong , Sebastien Picard , Xiangwen Zhang

The dynamics of gradient and Hamiltonian flows with particular application to flows on adjoint orbits of a Lie group and the extension of this setting to flows on a loop group are discussed. Different types of gradient flows that arise from…

Mathematical Physics · Physics 2012-08-31 Anthony M. Bloch , Philip J. Morrison , Tudor S. Ratiu

The geometric quantization of the geodesic flow on a compact Riemannian manifold via the BKS "dragging projection" yields the Laplacian plus a scalar curvature term. To avoid convergence issues, the standard construction involves somewhat…

Symplectic Geometry · Mathematics 2014-08-08 William D. Kirwin

We review results about $G_2$-structures in relation to the existence of special metrics, such as Einstein metrics and Ricci solitons, and the evolution under the Laplacian flow on non-compact homogeneous spaces. We also discuss some…

Differential Geometry · Mathematics 2020-08-11 Marisa Fernández , Anna Fino , Alberto Raffero

In this paper, we consider a Riemannian manifold (M, g) endowed with a Riemannian flow and we study the curvature term in the Bochner-Weitzenb{\"o}ck formula of the basic Laplacian on M. We prove that this term splits into two parts. The…

Differential Geometry · Mathematics 2018-08-14 Fida Chami , Georges Habib

We investigate the K\"ahler-Ricci flow modified by a holomorphic vector field. We find equivalent analytic criteria for the convergence of the flow to a K\"ahler-Ricci soliton. In addition, we relate the asymptotic behavior of the scalar…

Differential Geometry · Mathematics 2018-12-20 D. H. Phong , Jian Song , Jacob Sturm , Ben Weinkove

Leveraging techniques from the literature on geometric numerical integration, we propose a new general method to compute exact expressions for the BCH formula. In its utmost generality, the method consists in embedding the Lie algebra of…

Mathematical Physics · Physics 2023-08-29 Federico Zadra , Alessandro Bravetti , Angel Alejandro García-Chung , Marcello Seri

We study the Laplacian flow of a $\mathrm{G}_2$-structure where this latter structure is claimed to be Locally Conformal Parallel. The first examples of long time solutions of this flow with the Locally Conformal Parallel condition are…

Differential Geometry · Mathematics 2019-07-17 Victor Manero , Antonio Otal , Raquel Villacampa

The 2D Ricci flow equation in the conformal gauge is studied using the linearization approach. Using a non-linear substitution of logarithmic type, the emergent quadratic equation is split in various ways. New special solutions involving…

High Energy Physics - Theory · Physics 2010-11-26 Stefan Adrian Carstea , Mihai Visinescu

In this paper we continue our studies of the one dimensional conformal metric flows, which were introduced in [8]. In this part we mainly focus on evolution equations involving fourth order derivatives. The global existence and exponential…

Analysis of PDEs · Mathematics 2007-10-24 Yilong Ni , Meijun Zhu

In this paper, the steady creeping flow equations of a second grade fluid in cartesian coordinates are considered; the equations involve a small parameter related to the dimensionless non--Newtonian coefficient. According to a recently…

Mathematical Physics · Physics 2021-08-04 Matteo Gorgone

We investigate how to obtain various flows of K\"ahler metrics on a fixed manifold as variations of K\"ahler reductions of a metric satisfying a given static equation on a higher dimensional manifold. We identify static equations that…

Differential Geometry · Mathematics 2019-09-12 Claudio Arezzo , Alberto Della Vedova , Gabriele La Nave

We derive analytical expressions for the flow of Newtonian and power law fluids in elastic circularly-symmetric tubes based on a lubrication approximation where the flow velocity profile at each cross section is assumed to have its…

Fluid Dynamics · Physics 2014-10-13 Taha Sochi

In this paper, we derive a new model for the description of liquid crystalline flows. While microscopic Doi type models suffer from the high dimensionality of the underlying product space, the more macroscopic Ericksen--Leslie type models…

Analysis of PDEs · Mathematics 2021-03-04 Stefan Metzger

The Jacobi metric derived from the line element by one of the authors is shown to reduce to the standard formulation in the non-relativistic approximation. We obtain the Jacobi metric for various stationary metrics. Finally, the…

Mathematical Physics · Physics 2017-04-11 Sumanto Chanda , G. W. Gibbons , Partha Guha
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