Matthias Ludewig (changes) in nLab

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• Website.

Selected writings

On 2-vector bundles for 2-vector spaces regarded (here) as algebras with bimodules between them:

• Peter Kristel, Matthias Ludewig, Konrad Waldorf, The insidious bicategory of algebra bundles [[arXiv:2204.03900](https://arxiv.org/abs/2204.03900)]

On 2-representations of the string 2-group on 2-vector spaces and the construction of the stringor bundle:

• Peter Kristel, Matthias Ludewig, Konrad Waldorf, A representation of the string 2-group, [[arXiv:2206.09797](https://arxiv.org/abs/2206.09797)]

Review:

• Matthias Ludewig, The spinor bundle on loop space and its fusion product, talk at CQTS (Apr 2023) [[web](https://ncatlab.org/nlab/show/Center+for+Quantum+and+Topological+Systems#LudewigApr2023), video: YT]

On applications of coarse geometry to topological insulators in solid state physics:

• Matthias Ludewig, Coarse geometry and its applications in solid state physics, in Encyclopedia of Mathematical Physics 2nd ed, Elsevier (2024) [[arXiv:2308.06384](https://arxiv.org/abs/2308.06384)]