Geometric Flows of Structures

JD Lotay - Lectures and Surveys on G2-Manifolds and Related …, 2020 - Springer
Geometric flows have proved to be a powerful geometric analysis tool, perhaps most notably
in the study of 3-manifold topology, the differentiable sphere theorem, Hermitian–Yang–Mills …

A new example of a compact ERP ‐structure

I Kath, J Lauret - Bulletin of the London Mathematical Society, 2021 - Wiley Online Library
We provide the second‐known example of an extremally Ricci pinched closed G 2‐structure
on a compact 7‐manifold, by finding a lattice in the only unimodular solvable Lie group …

Flows of G2-structures on contact Calabi–Yau 7-manifolds

JD Lotay, HN Sá Earp, J Saavedra - Annals of Global Analysis and …, 2022 - Springer
We study the Laplacian flow and coflow on contact Calabi–Yau 7-manifolds. We show that
the natural initial condition leads to an ancient solution of the Laplacian flow with a finite time …

Hypercomplex almost abelian solvmanifolds

A Andrada, ML Barberis - The Journal of Geometric Analysis, 2023 - Springer
We give a characterization of almost abelian Lie groups carrying left invariant hypercomplex
structures and we show that the corresponding Obata connection is always flat. We …

The search for solitons on homogeneous spaces

J Lauret - Geometry, Lie Theory and Applications: The Abel …, 2021 - Springer
The concept of soliton, in its most general version, allows us to find canonical or
distinguished elements on any set provided with an equivalence relation and an …

Laplacian coflows of -structures on contact Calabi--Yau 7-manifolds

HNS Earp, J Saavedra, C Suan - arxiv preprint arxiv:2406.15254, 2024 - arxiv.org
We explore three versions of the Laplacian coflow of $ G_2 $-structures on circle fibrations
over Calabi--Yau 3-folds, interpreting their dimensional reductions to the K\" ahler geometry …

The twisted G equation for strong G-structures with torsion

A Fino, L Martín-Merchán, A Raffero - arxiv preprint arxiv:2306.07128, 2023 - arxiv.org
We discuss general properties of strong G $ _2 $-structures with torsion and we investigate
the twisted G $ _2 $ equation, which represents the G $ _2 $-analogue of the twisted Calabi …

Harmonic G2-structures on almost Abelian Lie groups

AJ Moreno - Differential Geometry and its Applications, 2023 - Elsevier
We consider left-invariant G 2-structures on 7-dimensional almost Abelian Lie groups. Also,
we characterise the associated torsion forms and the full torsion tensor according to the Lie …

On the Laplacian coflow of invariant -structures and its solitons

AJ Moreno, J Saavedra - arxiv preprint arxiv:2304.14930, 2023 - arxiv.org
In this work, we approach the Laplacian coflow of a coclosed $ G_2 $-structure $\varphi $
using the formulae for the irreducible $ G_2 $-decomposition of the Hodge Laplacian and …

Compact solvmanifolds with calibrated and cocalibrated -structures

V Manero - manuscripta mathematica, 2020 - Springer
We give a method to obtain new solvable 7-dimensional Lie algebras endowed with closed
and coclosed G _2 G 2-structures starting from 6-dimensional solvable Lie algebras with …