Education

PhD studies

Mathematics, Technische Universität Berlin, Germany since August 2015

Advisors: Bernd Sturmfels and Peter Bürgisser
Working title: Coisotropic and Isotropic Subvarieties of Grassmannians

Master Studies

Computer science, Paderborn University, Germany April 2013 - July 2015

Degree: Master of Science (passed with distinction)
Thesis: Number of Voronoi-relevant vectors in lattices with respect to arbitrary norms
Advisor: Johannes Blömer

Mathematics, Paderborn University, Germany April 2013 - July 2015

Degree: Master of Science (passed with distinction)
Thesis: Number of Voronoi-relevant vectors in lattices with respect to arbitrary norms
Advisor: Johannes Blömer

Mathematics, Stockholm University & KTH Royal Institute of Technology, Sweden September 2014 - January 2015

Bachelor Studies

Mathematics, Paderborn University, Germany October 2010 - March 2013

Degree: Bachelor of Science (passed with distinction)
Thesis: Attributbasierte Verschlüsselung mittels Gittermethoden - Mathematische Grundlagen
Advisor: Johannes Blömer

Computer science, Paderborn University, Germany October 2009 - March 2013

Degree: Bachelor of Science (passed with distinction)
Thesis: Attributbasierte Verschlüsselung mittels Gittermethoden - Verfahren und Sicherheitsbeweise
Advisor: Johannes Blömer

Scholarship-based study program with internship phases in computer science with minor subject economic sciences September 2009 - September 2012

Cooperation of Paderborn University and Atos (formerly Siemens) IT Solutions and Services

Awards &

Scholarships

SIAM Student Travel Award to attend SIAM Conference on Applied Algebraic Geometry, 31 July - 4 August 2017

Award of the Faculty of Computer Science, Electrical Engineering and Mathematics at the Paderborn University for excellence in studies with master degree in computer science 1 July 2016

Doctoral fellowship by the Einstein Foundation Berlin August 2015 - July 2017

Award of the Faculty of Computer Science, Electrical Engineering and Mathematics at the Paderborn University for excellence in studies with bachelor degree in computer science 12 July 2013

Finalist of the Google Anita Borg Scholarship June 2012

Scholarship from the German National Academic Foundation (“Studienstiftung des deutschen Volkes”) October 2011 - September 2015

Participant in the elite support program of the Faculty of Computer Science, Electrical Engineering and Mathematics at the Paderborn University February 2011 - September 2015

Scholarship from “Stiftung Studienfonds OWL” October 2010 - September 2012

Papers

Computing Tropical Varieties in Macaulay2
(with Carlos Améndola, Sara Lamboglia, Diane Maclagan, Ben Smith, Jeff Sommars, Paolo Tripoli and Magdalena Zajaczkowska)
Preprint
Macaulay2 package

Changing Views on Curves and Surfaces
(with Bernd Sturmfels and Matthew Trager)
Acta Mathematica Vietnamica, to appear
Videos

The Complex of Non-Chromatic Scales
(with Ernst Ulrich Deuker)
German version Der Komplex der nicht-chromatischen Skalen
in Mitteilungen der DMV 25 (2017) 17-25.

Secants, bitangents, and their congruences
(with Bernt Ivar Utstøl Nødland and Paolo Tripoli)
Combinatorial Algebraic Geometry, (eds. G.G. Smith and B. Sturmfels),
Fields Inst. Commun. 80, Fields Inst. Res. Math. Sci., (2017) 87–112

Coisotropic Hypersurfaces in Grassmannians
Preprint
Macaulay2 package

Computing the Chow variety of quadratic space curves
(with Peter Bürgisser, Pierre Lairez and Bernd Sturmfels)
Mathematical Aspects of Computer and Information Sciences, (eds. I. Kotsireas, S. Rump and C. Yap), MACIS 2015, Berlin, (2016) 130-136.

Voronoi Cells of Lattices with Respect to Arbitrary Norms
(with Johannes Blömer)
Preprint

Talks

Isotropic Subvarieties of Grassmannians
Berlin-Leipzig Seminar on Algebra, Geometry and Combinatorics
FU Berlin
12 November 2017

Coisotropic Hypersurfaces in Algebraic Vision
BMS-BGSMath Junior Meeting 2017
Institut d'Estudis Catalans, Barcelona
09 October 2017

Coisotropic Varieties in Algebraic Vision
Kolloquium Algorithmische Algebra
TU Berlin
21 September 2017

Computing Chow Forms, Hurwitz Forms, and Beyond
SIAM Conference on Applied Algebraic Geometry
Georgia Institute of Technology
03 August 2017

Changing Views on Curves and Surfaces
SIAM Conference on Applied Algebraic Geometry
Georgia Institute of Technology
31 July 2017

Preparatory lectures for the Chow lectures
Chow lectures
MPI MIS Leipzig, Universität Leipzig
22-24 May 2017

Plücker Varieties and Higher Secants of Sato's Grassmannian
Reading Group on High dimensional algebraic geometry
MPI MIS Leipzig
26 April 2017

Mathematik in Musiktheorie- und praxis
Der 22. Berliner Tag der Mathematik
HU Berlin
22 April 2017

Chow and Hurwitz complexes and their singular loci
Saxonian Geometry Day
TU Chemnitz
08 December 2016

Singular Loci of Coincident Root Loci
Kolloquium algorithmische Mathematik und Komplexitätstheorie
TU Berlin
15 November 2016

Coisotropic hypersurfaces in Grassmannians
Forschungsseminar Algebra/Algebraische Geometrie
FU Berlin
07 November 2016

Coisotropic hypersurfaces in Grassmannians
KTH & SU Algebra and Geometry Seminar
KTH Stockholm
12 October 2016

What is ... an Eigenvector of a Tensor?
"What is ...?" seminar
BMS Loft, Urania, Berlin
17 June 2016

Coisotropic hypersurfaces in the Grassmannian
Workshop on Discrete and Non-Linear Geometry
Technische Universität Berlin
17 June 2016

Coisotropic hypersurfaces in the Grassmannian
Kolloquium Algebra und Zahlentheorie
Technische Universität Berlin
31 May 2016

Das ist das Haus vom Ni-ko-laus
Der 21. Berliner Tag der Mathematik
FU Berlin
30 April 2016

Voronoi Cells of Lattices with Respect to Arbitrary Norms
Joint Annual Meeting of DMV and GAMM 2016
TU Braunschweig
9 March 2016

Self-Duality of Coisotropic Hypersurfaces in Grassmannians
Seminar on NonLinear Algebra
Technische Universität Berlin
10 December 2015

Computing the Chow Variety of Quadratic Space Curves
MACIS 2015 - Sixth International Conference on Mathematical Aspects of Computer and Information Sciences
Zuse Institute Berlin
12 November 2015

Voronoi Cells of Lattices w.r.t. Arbitrary Norms
Seminar Discrete Geometry
Freie Universität Berlin
5 November 2015

Valuation and integral
Seminar Continuous Combinatorics
Freie Universität Berlin
20 October 2015

Number of Voronoi-relevant vectors in lattices with respect to arbitrary norms
Oberseminar Codes & Kryptographie
Paderborn University
15 July 2015

Gaussian Graphical Models
Seminar Algebraic Statistics
Freie Universität Berlin
25 June 2015

Project Group "DynaSearch" - Final Presentation
Oberseminar Algorithmen & Komplexität
Paderborn University
8 October 2014

NCP Group - Overview and New Results
Project Group DynaSearch - P2P-based infrastructure for OTF-markets
Paderborn University
20 August 2014

NCG Group - New Results and Open Problems
Project Group DynaSearch - P2P-based infrastructure for OTF-markets
Paderborn University
15 July 2014

Hyperbolische Mengen
Seminar Ergodentheorie
Paderborn University
21 June 2014

NCG Group - New Results and Open Problems
Project Group DynaSearch - P2P-based infrastructure for OTF-markets
Paderborn University
4 June 2014

The weak 3-flow conjecture and the weak circular flow conjecture
Seminar Graphentheorie
Paderborn University
27 May 2014

NCG Group - First Results and Open Problems
Project Group DynaSearch - P2P-based infrastructure for OTF-markets
Paderborn University
30 April 2014

Project Group "DynaSearch" - Intermediate Report: Results and Plans
Oberseminar Algorithmen & Komplexität
Paderborn University
16 April 2014

Forensik
Seminar Hacking
Paderborn University
18 December 2013

Random Graphs and their Use in Peer-to-Peer Networks
Seminar DynaSearch - P2P-based infrastructure for OTF-markets
Paderborn University
28 November 2013

Explizite Konstruktion von Expandergraphen
Sommerakademie "Woher kommt der Zufall in zufallsgesteuerten Algorithmen?" (Studienstiftung des deutschen Volkes)
Görlitz, Germany
September 2013

A Lower Bound for Computing the Diameter
Seminar Local Algorithms
Paderborn University
5 May 2013

Attributbasierte Verschlüsselung mittels Gittermethoden
Oberseminar Codes & Kryptographie
Paderborn University
1 March 2013

Projekt Wäschespeichersysteme
Mathematisches Praktikum
Paderborn University
5 February 2013

Fliegende Cops: Charakterisierung der Baumweite
Sommerakademie "Kombinatorische Suchspiele - von Räubern und Gendarmen" (Studienstiftung des deutschen Volkes)
Neubeuern, Germany
August 2012

Symmetrische Gruppen
Proseminar Darstellungen endlicher Gruppen
Paderborn University
June 2012

Zählen perfekter Matchings in planaren Graphen
Seminar über Computeralgebra, Darstellungstheorie und Kombinatorik
Paderborn University
25 May 2012

Visuelle Kryptografie
Proseminar Eliteförderprogramm
Paderborn University
4 February 2011

Activities


my cello and I perform with Sh'lonk on their studio album child of music (released April 7, 2017)

Berlin-Leipzig Seminar on Algebra, Geometry and Combinatorics
Leipzig/Berlin October - December 2017

NoGAGS 2017
Humboldt Universität Berlin 16 - 17 November 2017

Algebra meets Numerics: Condition and Complexity
Berlin 06-07 November 2017

BMS-BGSMath Junior Meeting 2017
Institut d'Estudis Catalans, Barcelona 09-10 October 2017

Interactions with Lattice Polytopes
Otto-von-Guericke-Universität Magdeburg 14-16 September 2017

Stockholm Master Class in Tropical geometry
Stockholm University, KTH 14-27 August 2017

SIAM Conference on Applied Algebraic Geometry
Georgia Institute of Technology, Atlanta, Georgia, USA 31 July - 04 August 2017

Applied Macaulay2 Tutorials
Georgia Institute of Technology, Atlanta, Georgia, USA 27-29 July 2017

Reading Group on Real Algebraic Geometry
MPI MIS Leipzig 03-07 July 2017

Chow lecture
MPI MIS Leipzig, Universität Leipzig 22-24 May 2017

Computing in Tropical Geometry
Zuse Institute, Berlin 11-12 May 2017

ASGARD Math 2017: A Scandinavian Gathering Around Remarkable Discrete Mathematics
University of Oslo, Norway 27-28 April 2017

Der 22. Berliner Tag der Mathematik
HU Berlin, Germany 22 April 2017

8th polymake conference and developer meeting
TU Berlin 03 February 2017

Polar geometry
University of Oslo 26-28 January 2017

Reinhold-Baer-Kolloquium
TU Berlin 21 January 2017

Saxonian Geometry Day
TU Chemnitz 08-09 December 2016

Weekly Joint Seminar with MPI MIS Leipzig
MPI Leipzig / TU Berlin Winter term 2016/2017

Heidelberg Laureate Forum
Heidelberg, Germany 18-23 September 2016

Thematic Program on Combinatorial Algebraic Geometry
The Fields Institute for Research in Mathematical Sciences, Toronto, Canada July - September 2016

Summer School: Geometry of Valuations
Goethe University, Frankfurt am Main, Germany 4-8 July 2016

Absolventenfeier der Fakultät für Elektrotechnik, Informatik und Mathematik
Universität Paderborn, Germany 1 July 2016

Summer School on Algebra, Statistics and Combinatorics
Aalto University, Helsinki, Finland 27 June - 1 July 2016

Workshop on Discrete and Non-Linear Geometry
Technische Universität Berlin 16-17 June 2016

Macaulay2 Workshop 2016
University of Warwick, UK 23-26 May 2016

Moduli and Automorphic Forms: a Meeting for Women in Mathematics
HU Berlin, Germany 12-14 May 2016

Der 21. Berliner Tag der Mathematik
FU Berlin, Germany 30 April 2016

ASGARD Math 2016: A Scandinavian Gathering Around Remarkable Discrete Mathematics
University of Oslo, Norway 21-22 April 2016

Oberwolfach Workshop: Toric Geometry
Mathematisches Forschungsinstitut Oberwolfach, Germany 27 March-2 April 2016

Joint Annual Meeting of DMV and GAMM
Braunschweig, Germany 7-11 March 2016

SM'ART - Seminar on Matroids in Algebra, Representation theory and Topology
Borel Seminar 2016
Les Diablerets, Switzerland
24-29 January 2016

Seminar on NonLinear Algebra
Technische Universität Berlin 10 December 2015

MACIS 2015 - Sixth International Conference on Mathematical Aspects of Computer and Information Sciences
Zuse Institute Berlin 11-13 November 2015

Meeting on Algebraic Vision 2015
Technische Universität Berlin 8-9 October 2015

Summer School: Convex geometry - discrete and computational
Berlin 29 June - 10 July 2015

Seminar on NonLinear Algebra
Technische Universität Berlin 26 June 2015

Workshop on NonLinear Algebra
Berlin 29-30 May 2015

Workshop Tropical Doener
Freie Universität Berlin 27-28 May 2015

Teaching

Algebraic Geometry I

Recitation leader Winter term 2017/18

In English, Institute of Mathematics, TU Berlin

Algebra I

Recitation leader Winter term 2017/18

In German, Institute of Mathematics, TU Berlin

“Schüler-Kryptotag”

Student Instructor 2012 – 2016

An annual cryptography workshop for school students.
In German, Department of Computer Science, Paderborn University

Introduction to Cryptography

Teaching assistant Summer term 2014

In German, Department of Computer Science, Paderborn University

Modelling

Teaching assistant Winter term 2013/14

In German, Department of Computer Science, Paderborn University

Introduction to Cryptography

Teaching assistant Summer term 2013

In German, Department of Computer Science, Paderborn University

Modelling

Teaching assistant Winter term 2012/13

In German, Department of Computer Science, Paderborn University

Calculus for Computer Scientists

Teaching assistant Winter term 2011/12

In German, Institute for Mathematics, Paderborn University

Linear Algebra for Computer Scientists

Teaching assistant Summer term 2011

In German, Institute for Mathematics, Paderborn University

Calculus for Computer Scientists

Teaching assistant Winter term 2010/11

In German, Institute for Mathematics, Paderborn University






Contact Details

Kathlén Kohn
Institut für Mathematik
Technische Universität Berlin
Straße des 17. Juni 136
10623 Berlin
MA 628

kohn@math.tu-berlin.de