The initial quadratic form on an abelian group This is a corrected version of an erroneous remark in our paper ``On the homotopy type of L-spectra of the integers''. The rest of the paper is not affected. Erratum.pdf PDF-Dokument [253.3 KB]
K-Theory seminar SS19 This is the program for this terms K-theory seminar about Galois descent in telescopically localized algebraic K-theory due to Clausen--Mathew--Naumann--Noel. Galois descent.pdf PDF-Dokument [196.2 KB]
K-Theory seminar WS 18/19 This is the detailed seminar program for our research seminar where we will go through the paper of Clausen--Mathew--Morrow about p-adic K-theory of p-adic rings. CMM_seminar_programme.pdf PDF-Dokument [219.4 KB]
Smooth and topological Normal Invariants of complex projective 2-space I calculate the group of normal invariants of complex projective 2-space and use it to classify fake complex projective 3-spaces. Normal invariants.pdf PDF-Dokument [168.7 KB]
Homotopy 7-spheres I use the classification of fake complex projective 3-spaces to calculate which of the 28 homotopy 7-spheres arises as an S^1-bundle over a fake complex projective 3-space. homotopy 7-spheres.pdf PDF-Dokument [213.6 KB]
Almost complex structures on 4-manifolds This note aims to understand which topological 4-manifolds admit an almost complex structure. almost complex 4 manifolds.pdf PDF-Dokument [200.9 KB]
Poster Session BIGS 2015 My Poster for the annual poster session of the Bonn International Graduate School 2015 poster.pdf PDF-Dokument [149.1 KB]
Poster Session BIGS 2014 My Poster for the annual poster session of the Bonn International Graduate School 2014 poster.pdf PDF-Dokument [158.5 KB]
Poster Session BIGS 2013 My Poster for the annual poster session of the Bonn International Graduate School 2013 Poster BIGS 2013.pdf PDF-Dokument [182.9 KB]