Assistant Professor
Department of Mathematics
Reed College
Office: L305
Email: aosorno at reed dot edu
I am on sabbatical leave during the 2016-2017 academic year. I am being partially supported by the Career Enhancement Fellowship from the Woodrow Wilson Foundation.

I do research in algebraic topology. I am particularly interested in higher category theory and its connections with higher K-theory. In 2010, I got my PhD at MIT with Mark Behrens. From 2010 to 2013, I was a postdoc at the University of Chicago working with Peter May.

I am the administrator for the mailing list of the Cascade Topology Seminar. If you would like to be added to the list, please send me an email with your request.

Equivariant infinite loop space theory, I. The space level story (joint with J. Peter May and Mona Merling). PDF.

2-Segal sets and the Waldhausen construction (joint with Julia E. Bergner, Viktoriya Ozornova, Martina Rovelli, and Claudia Scheimbauer). To appear in Proceedings of WIT II in Topology and its Applications. PDF

Stable Postnikov data of Picard 2-categories (joint with Nick Gurski, Niles Johnson and Marc Stephan). To appear in Algebraic and Geometric Topology. PDF

Extending homotopy theories across adjunctions (joint with Nick Gurski and Niles Johnson). To appear in Homology, Homotopy and Applications. PDF

K-theory for 2-categories (joint with Nick Gurski and Niles Johnson). PDF

Constructing equivariant spectra via categorical Mackey functors (joint with Anna Marie Bohmann). Algebraic and Geometric Topology 15(1):537-563, 2015.PDF

A model structure on GCat (joint with Anna Marie Bohmann, Kristen Mazur, Viktoriya Ozornova, Kate Ponto and Carolyn Yarnall). Women in Topology: Collaborations in Homotopy Theory, Contemp. Math. 641, 123-134, 2015.. PDF

Infinite loop spaces, and coherence for symmetric monoidal bicategories (Joint with Nick Gurski). Advances in Mathematics, 246:1-32, 2013. PDF

Modeling stableone-types (joint with Niles Johnson). Theory and Applications of Categories, 26:520-537, 2012.PDF

Spectra associated to symmetric monoidal bicategories. Algebraic and Geometric Topology, 12(1):307-342, 2012.PDF

Explicit formulas for 2-characters. Topology and its Applications, 157(2):369-377, 2010.PDF

Other publications

Espacios de lazos infinitos (Survey paper about infinite loop spaces - in Spanish). Boletín de Matemáticas, 18(2):163-182, 2011.PDF