3 papers
math.AG2026
The singular locus of a GL-variety
Christopher Heng Chiu, Alessandro Danelon, Andrew Snowden
A -variety is a (typically) infinite dimensional variety equipped with an action of the infinite general linear group. In recent work of the first two authors with…
math.AG2025
Singular loci in varieties of tensors
Christopher Chiu, Alessandro Danelon, Jan Draisma
A Vec-variety is a suitable functor from finite-dimensional vector spaces to finite-dimensional varieties. Most varieties in the geometry of tensors, e.g. the variety of d-way tens…
math.AG2024
Topological Noetherianity of the infinite half-spin representations
Christopher Chiu, Jan Draisma, Rob Eggermont +2
We prove that the infinite half-spin representations are topologically Noetherian with respect to the infinite spin group. As a consequence we obtain that half-spin varieties, whic…