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math-ph2019★ 4 cited
Reconstructing manifolds from truncated spectral triples
Lisa Glaser, Abel B. Stern
We explore the geometric implications of introducing a spectral cut-off on Riemannian manifolds. This is naturally phrased in the framework of non-commutative geometry, where we wo…
math-ph2013★ 50 cited
A closed form expression for the causal set d'Alembertian
Lisa Glaser
Recently a definition for a Lorentz invariant operator approximating the d'Alembertian in d-dimensional causal set space-times has been proposed. This operator contains several dim…