Mixed finite elements for the Gross–Pitaevskii eigenvalue problem: <i>a priori</i> error analysis and guaranteed lower energy bound
Gallistl, D Hauck, M Liang, Y Peterseim, D IMA Journal of Numerical Analysis volume 45 issue 3 1320-1346 (04 Jun 2025)
A family of conforming finite element divdiv complexes on cuboid meshes
Hu, J Liang, Y Ma, R Zhang, M Numerische Mathematik volume 156 issue 4 1603-1638 (06 Aug 2024)
Finite Element Grad Grad Complexes and Elasticity Complexes on Cuboid Meshes
Hu, J Liang, Y Lin, T Journal of Scientific Computing volume 99 issue 2 (10 May 2024)
Conforming discrete Gradgrad-complexes in three dimensions
Hu, J Liang, Y Mathematics of Computation volume 90 issue 330 1637-1662 (24 Mar 2021)
Conforming Finite Element DIVDIV Complexes and the Application for the Linearized Einstein--Bianchi System
Hu, J Liang, Y Ma, R SIAM Journal on Numerical Analysis volume 60 issue 3 1307-1330 (02 Jun 2022)
Effective Whitney stratification of real algebraic varieties
Helmer, M Leykin, A Nanda, V Mathematics of Computation
Tue, 28 Oct 2025
15:30
L4

Nearly G2-structures and G2-Laplacian co-flows

Jakob Stein
(State University of Campinas and University of Oxford)
Abstract

Nearly $G_2$-structures in dimension seven are, up to scaling, critical points of a geometric flow called (modified) Laplacian co-flow. Moreover, since nearly $G_2$-structures define Einstein metrics, they can also be associated to critical points of the volume-normalised Ricci flow. In this talk, we will discuss a recent joint work with Jason Lotay, showing that many of these nearly $G_2$ critical points are unstable for the modified co-flow, and giving a lower bound on the index.

On the semi-infinite cohomology of graded-unitary vertex algebras
Beem, C Garner, N Journal of Algebra (01 Mar 2026)
Sums of dilates over groups of prime order
Conlon, D Lim, J American Mathematical Monthly volume 132 issue 9 848-855 (08 Sep 2025)
Measurement of the inelasticity distribution of neutrino-nucleon interactions for 80 GeV < Eν <560 GeV with IceCube DeepCore
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