collaborators

2 papers

math.KT2026

The Witt ring of the real sphere

Heng Xie

We calculate the Witt ring of the real sphere.

math.KT2026

Hermitian K-theory of quadric hypersurfaces

Heng Xie

Let k be a commutative ring in which 2 is invertible. We prove that the Hermitian K-theory of quadric hypersurfaces over k admits fibration sequences relating it to the base ring a…