J. Stein

collaborators

3 papers

math.DG2026

Isolated singularities in $G_{2}$ -structures with torsion

Henrique SÃ¡ Earp, Jakob Stein

We revisit the study of $G_{2}$ -structures with special torsion, and isolated singularities. Many of the known examples with conical singularities admit additional symmetries, and we…

math.DG2026

Nearly $G_{2}$ -manifolds and $G_{2}$ -Laplacian co-flows

Jason D. Lotay, Jakob Stein

Nearly $G_{2}$ -structures define positive Einstein metrics in $7$ dimensions and are critical points, up to scale, for a geometric flow of co-closed $G_{2}$ -structures with good analyt…

math.DG2025

$G_{2}$ -instantons on the ALC members of the $B_{7}$ family

Jakob Stein, Matt Turner

Using co-homogeneity one symmetries, we construct a two-parameter family of non-abelian $G_{2}$ -instantons on every member of the asymptotically locally conical $B_{7}$ -family…

Isolated singularities in G2​-structures with torsion

Nearly G2​-manifolds and G2​-Laplacian co-flows

G2​-instantons on the ALC members of the B7​ family

Isolated singularities in $G_{2}$ -structures with torsion

Nearly $G_{2}$ -manifolds and $G_{2}$ -Laplacian co-flows

$G_{2}$ -instantons on the ALC members of the $B_{7}$ family