1 citations · 1 across the 2 of their papers we have counts for
2 papers
math.FA2008★ 1 cited
Index Theory for Boundary Value Problems via Continuous Fields of C*-algebras
Johannes Aastrup, Ryszard Nest, Elmar Schrohe
We prove an index theorem for boundary value problems in Boutet de Monvel's calculus on a compact manifold X with boundary. The basic tool is the tangent semigroupoid $\cT^-X$ gene…
hep-th2008
On Spectral Triples in Quantum Gravity II
Johannes Aastrup, Jesper M. Grimstrup, Ryszard Nest
A semifinite spectral triple for an algebra canonically associated to canonical quantum gravity is constructed. The algebra is generated by based loops in a triangulation and its b…