E-Mail:

lixdxer@zib.de

(replace x by a more reasonable letter)

Office:

Zuse-Institut Berlin

Takustr. 7

Rundbau

Raum 3007

+49 30 84185 374

Postal address:

Zuse-Institut Berlin

Takustr. 7

14195 Berlin

Germany

Postdoc at Zuse Institute Berlin, Mathematics of Transportation and Logistics group.

I obtained my PhD (Dr. rer. nat.) from Humboldt-Universität zu Berlin, Institut für Mathematik, under the supervision of Remke Kloosterman and Ronald van Luijk. Before I have been a member of the IRTG Moduli and Automorphic Forms in Berlin and Leiden, and I worked at Institut für Algebraische Geometrie, Leibniz-Universität Hannover.

- New Perspectives on PESP: T-Partitions and Separators (with C. Liebchen), 19th Workshop on Algorithmic Approaches for Transportation Modelling, Optimization, and Systems (ATMOS 2019), 2019.
- The Restricted Modulo Network Simplex Method for Integrated Timetabling and Passenger Routing (with F. Löbel, R. Borndörfer), ZIB-Report 19-36, 2019. To appear in Operations Research 2019.
- A Concurrent Approach to the Periodic Event Scheduling Problem (with R. Borndörfer, S. Roth), Journal of Rail Transport Planning & Management, 2019 (in press). Among the 10 best papers of RailNorrköping 2019, the 8th International Conference on Railway Operations Modelling and Analysis (ICROMA).
- A Simple Way to Compute the Number of Vehicles That Are Required to Operate a Periodic Timetable (with R. Borndörfer, M. Karbstein, and C. Liebchen), 18th Workshop on Algorithmic Approaches for Transportation Modelling, Optimization, and Systems (ATMOS 2018), 2018. Received the ATMOS 2018 Best Paper Award.
- Separation of Cycle Inequalities in Periodic Timetabling (with R. Borndörfer, H. Hoppmann, and M. Karbstein), Discrete Optimization, 2019 (in press).
- Hypersurfaces with defect, preprint, 2016.
- A note on Bertini irreducibility theorems for simplicial toric varieties over finite fields, preprint, 2014.
- Density of quasismooth hypersurfaces in simplicial toric varieties, J. Théor. Nombres Bordeaux, Tome 29, No. 1, 2017.

- New Perspectives on PESP: T-Partitions and Separators, slides of a talk given at ATMOS, September 2019.
- The Restricted Modulo Network Simplex Method for Integrated Timetabling and Passenger Routing, slides of a talk given at Operations Research, September 2019.
- A Concurrent Approach to the Periodic Event Scheduling Problem, slides of a talk given at RailNorrköping, June 2019.
- Umsteigen ohne Warten, slides of a workshop (in German) for teachers at Tag der Mathematik in Erlangen, March 2019.
- A Simple Way to Compute the Number of Vehicles That Are Required to Operate a Periodic Timetable, slides of a talk given at ATMOS, August 2018.
- S-Bahn-Challenge, slides of a talk (in German) for high school students at MathInside in Berlin, January 2018.
- Hypersurfaces with defect, slides of a talk given at the IRTG 1800 Student Conference in Leiden, September 2016.
- Smoothness and factoriality of projective hypersurfaces, slides of a talk given at GAeL XXIII in Leuven, June 2015.
- The Tate conjecture from finiteness, notes for a talk given at a seminar on Faltings' proof of the Mordell conjecture, May 2015.
- S-Bahn Challenge: How long does it take to travel the entire Berlin S-Bahn network?, slides of a talk given at the 3rd BMS student conference, February 2015.
- Construction of the dual abelian variety, notes for a talk given at a seminar on abelian varieties and Fourier-Mukai transforms, December 2014.
- Taming the dualizing complex, notes for a talk given at a seminar on coherent comology, April 2014.
- The density of quasismooth hypersurfaces in weighted projective space, slides of a talk given at the IRTG Summer School 2013, September 2013.

- Hypersurfaces with defect and their densities over finite fields, Dissertation, Humboldt-Universität zu Berlin, 2017.
- Cuspidal plane curves of degree 12 and their Alexander polynomials, Diplomarbeit, Humboldt-Universität zu Berlin, 2012.

- Wintersemester 2019/20: Vorlesung Verkehrsoptimierung: Optimale Touren in Graphen, 4 SWS, FU Berlin
- Wintersemester 2019/20: Seminar Kombinatorische Optimerung: Graphzerlegungen, 2 SWS, FU Berlin
- Sommersemester 2019: Seminar Optimierung im öffentlichen Verkehr, 2 SWS, FU Berlin
- Wintersemester 2018/19: Seminar Multi-Criteria Optimization, 2 SWS, FU Berlin
- Sommersemester 2018: Vorlesung und Übung Mathematical Aspects of Public Transportation Networks, 4 SWS, FU Berlin
- Sommersemester 2018: Seminar Variants of Shortest Path Problems, 2 SWS, FU Berlin
- Sommersemester 2016: Übung Mathematik II für Ingenieure, 4 SWS, Hannover
- Wintersemester 2015/16: Übung Mathematik I für Ingenieure, 10 SWS, Hannover
- Wintersemester 2014/15: Übung Lineare Algebra I, 2 SWS, HU Berlin