J. Shaneson

collaborators

2 papers

math.GT2019

Signatures of topological branched covers

Christian Geske, Alexandra Kjuchukova, Julius L. Shaneson

Let $X^{4}$ and $Y^{4}$ be smooth manifolds and $f : X \to Y$ a branched cover with branching set $B$ . Classically, if $B$ is smoothly embedded in $Y$ , the signature $σ (X)$ can be comput…

hep-th2018

Non-simply-laced Symmetry Algebras in F-theory on Singular Spaces

Antonella Grassi, James Halverson, Cody Long +2

We demonstrate how non-simply-laced gauge and flavor symmetries arise in F-theory on spaces with non-isolated singularities. The breaking from a simply-laced symmetry to one that i…