Preprints

24. Higher homotopy categories, higher derivators, and K-theory

arXiv (2019). Submitted.

23. On transfer maps in the algebraic K-theory of spaces

arXiv (2019). Submitted.

22. Dévissage for Waldhausen K-theory

arXiv (2018). Submitted.

(2018). [pdf]

(2018). [pdf]

(2017). [pdf]

(2014). [pdf]

Organization of Conferences

• WORKSHOP Derivators
Regensburg, 9-12 April, 2019, with D.-C. Cisinski

Bavarian Geometry & Topology Meeting III
Regensburg, July 11-12, 2018, with M. Land

Homotopy Theory Workshop
Regensburg, 5 May 2018, with J. Noel

Bavarian Geometry & Topology Meeting I
Regensburg, 23 June 2017, with W. Steimle

• WINTER SCHOOL: Bordism, L-theory and real algebraic K-theory
December 5-9, 2016, Kastell Windsor (outside of Regensburg)
with U. Bunke, M. Land and N. Naumann

• SUMMER SCHOOL: Algebraic K-theory and Trace Methods
August 3-7, 2015, with J. Noel

Publications

21. Topological manifold bundles and the A-theory assembly map

with W. Steimle
arXiv (2019). To appear in Proc. AMS

20. On the h-cobordism category. I

with W. Steimle
arXiv (2018). To appear in Int. Math. Res. Not.

19. Adjoint functor theorems for $\mathrm{\infty }$-categories

with H. K. Nguyen and C. Schrade
arXiv (2018). To appear in J. London Math. Soc.

18. Some characterizations of acyclic maps

J. Homotopy Relat. Struct. 14 (2019), no.3, 773–785 [arXiv] [final version]

17. A cobordism model for Waldhausen $K$-theory

with W. Steimle
J. London Math. Soc. 99 (2019), no. 2, 516-534. [arXiv]

16. Model topoi and motivic homotopy theory

with F. Strunk
Doc. Math. 23 (2018), 1757-1797. [arXiv]

15. A remark on configuration spaces of two points

with P. Salvatore
Proc. Edinburgh Math. Soc. 61 (2018), no. 2, 599-605. [arXiv]

14. Small presentations of model categories and Vopěnka's principle

with J. Rosický
Homology, Homotopy, Appl. 20 (2018), no. 1, 303-328. [arXiv]

13. The realization space of an unstable coalgebra

with G. Biedermann and M. Stelzer
Astérisque 393 (2017). [arXiv]

12. Parametrized cobordism categories and the Dwyer-Weiss-Williams index theorem

with W. Steimle
J. Topol. 10 (2017), no. 3, 700-719. [arXiv]

11. On Serre microfibrations and a lemma of M. Weiss

Glasg. Math. J. 59 (2017), no. 3, 649-657. [pdf]

10. $K$-theory of derivators revisited

with F. Muro
Annals of K-theory 2 (2017), no. 2, 303-340. [arXiv]

9. The accessibility rank of weak equivalences

with J. Rosický
Theory Appl. Categ. 30 (2015), no. 19, 687-703. [arXiv]

8. On the map of Bökstedt-Madsen from the cobordism category to A-theory

with W. Steimle
Algebr. Geom. Topol. 14 (2014), no. 1, 299-347. [arXiv]

7. On the homotopy type of certain cobordism categories of surfaces

Int. Math. Res. Not. 8 (2014), 2037-2089. [arXiv]

6. Simplicial presheaves of coalgebras

Algebr. Geom. Topol. 13 (2013), 1967-2000. [arXiv]

5. A note on K-theory and triangulated derivators

with F. Muro
Adv. Math. 227 (2011), no. 5, 1827-1845. [arXiv]

4. Some remarks on configuration spaces

Proc. Amer. Math. Soc. 139 (2011), no. 5, 1879-1887.

3. Homotopy theory of posets

Homology, Homotopy Appl. 12 (2010), no. 2, 211-230.

2. On a conjecture by J.H. Smith

Theory Appl. Categ. Vol. 24 (2010), no. 5, 114-116.

1. On the cofibrant generation of model categories

J. Homotopy Relat. Struct. 4 (2009), no. 1, 245-253. [arXiv]
For an Erratum see here.