Hi! I am Nina.
mathematics and other stuff.
I am an executive editor for
new open-access journal publishing research in the mathematics of
Here is a brief version of my
You can contact me either at
otter at msi dot mpg dot de
ucla dot edu.
On 7 May 2018 I successfully defended my DPhil thesis at the
University of Oxford.
The Applied Category Theory School is an initiative to bring early
career researchers into the applied category theory community. The
school consists of an online seminar and a research week. It took
place for the first time in 2018, the research week being hosted at the
Lorentz Center in Leiden. The 2019 edition will be hosted in
Blog posts written by the participants of the ACT 2018 School can be found on the . For more information, see
n-Category Café here.
Preprints and recent publications
A roadmap for the computation of persistent homology (joint with M. Porter, U. Tillmann, P. Grindrod, H. Harrington), EPJ Data Science 2017 6:17, Springer Nature. A combined pdf of the paper and the supplementary material is here.
All processed data sets used in the benchmarking, as well as scripts used to measure memory, all scripts written for the tutorial, and an updated list of libraries for PH can be found
Operads and phylogenetic trees (joint with J. Baez), Theory and Applications of Categories, Vol. 32, 2017, No. 40, pp 1397-1453.
Stratifying multiparameter persistent homology (joint with H. Schenck, H. Harrington, U. Tillmann)
Magnitude meets persistence. Homology
theories for filtered simplicial sets
Slides or videos from talks
The persistent homology of data, Oberseminar
Geometrie, Max Planck Institute for Mathematics in the Sciences,
Leipzig, 17 July 2018
Stratifying multiparameter persistent homology, TDA seminar, CIMAT, Guanajuato, Mexico, 1 September 2017.
New invariants for multiparameter persistent homology, at the Applied Algebraic Topology 2017 conference, Sapporo, Japan, 9 August 2017.
Stratifying multiparameter persistent homology, at the workshop
Topological Data Analysis: Developing Abstract Foundations, BIRS, Canada, 2 August 2017. A video of the talk is available here.
The phylogenetic operad, at the Barcelona Mathematical Days, Barcelona, 27 April 2017.
Multiparameter persistent homology: applications and algorithms, at the GUDHI/Top Data Workshop, Porquerolles, France, 18 October 2016.
Operads and phylogenetic trees at the Computational and Applied Algebra minisymposium, British Applied Mathematics Colloquium, Oxford, 6 April 2016.
A roadmap for the computation of persistent homology at the 2nd School and Conference on Topological Data Analysis, Queretaro, Mexico, 11 December 2015.
The phylogenetic operad at the SISU Math Research Seminar, San Jose State University, 9 November 2015.
The phylogenetic operad at the Applied Algebra Minisymposium, UC Berkeley, 4 November 2015.
Software for persistent homology: overview and demonstration at the CAT Research School and ATI scoping workshop in Oxford, 11 September 2015. The scripts for the exercises given during the talk can be found here (latest upload 14 September).
Operads and phylogenetic trees at the YTM in Lausanne, 9 July 2015.
A roadmap for the computation of persistent homology at the AAT research network meeting in Aberdeen, 8 June 2015.
10 September 2018, Scottish Topology Seminar, Aberdeen
16 – 19 January 2019, Joint Mathematical Meetings, Baltimore
1 – 5 April 2019, Imaging and machine learning, part of
The Mathematics of imaging semester at the Institute Henry Poincaré, Paris
6 – 7 April 2019, AWM Research Symposium, Rice University
University of Oxford:
In Hilary and Trinity Term (January–June) 2017 I was tutoring Topology at New College and St Hugh's College.
In Hilary (January–March) 2017 I was the class tutor for Computational Algebraic Topology. I also gave a tutorial on Category Theory for the Stanford in Oxford programme.
In Hilary and Trinity Term (January–June) 2016 I was the tutor for Topology at New College.
About TeX (from here):
In general, TeX usage is pretty much like being a guest at somebody
There are zillions of stuff that you have absolutely no idea what they
So don't fiddle too much. Just enjoy your stay and get out as soon as