12-14 May 2015 |
Visit of
Lukas Katthän from Osnabrück University at Stockholm University (talk in
Algebra and Geometry Seminar at KTH, May 13, on `Stanley depth, partitionable simplicial complexes and the lcm lattice'). |
1-7 Feb. 2015 |
Participant at the Workshop "Geometric and Algebraic Combinatorics" at Oberwolfach. |
26 Aug. - 2 Sep. 2014 |
Visit of
Alexander Kasprzyk from Imperial College London at Stockholm University (talk in Algebra and Geometry Seminar at KTH, Aug 27,
on `The combinatorics of Mirror Symmetry'). |
25 Aug. - 11 Sep. 2014 |
Visit of
Akihiro Higashitani (on the right) from Osaka University at Stockholm University
(talk in Combinatorics Seminar at SU, Sept 10, on `Introduction to Ehrhart polynomials of lattice polytopes and their characterization '). |
16-28 June 2014 |
Visit of
Alexander Kasprzyk from Imperial College London at Stockholm University. |
9-10 May 2014 |
Participation at Symposium Diskrete Mathematik 2014
in Frankfurt (pics). |
9 April 2014 |
Talk "Geometry of numbers and toric Fano varieties" in the Algebra and Geometry Seminar at Stockholm University. |
11-23 March 2014 |
Visit of
Benjamin Assarf
from TU Berlin
at Stockholm University. |
11 March 2014 |
Talk "Combinatorial challenges of toric Fano varieties" in the Algebra and Geometry Seminar at Uppsala University. |
25 October 2013 |
Talk "Ehrhart polynomials and discriminants" in the General seminar of the Mathematics institute at Stockholm University. |
16 October 2013 |
Talk "The mixed degree of lattice polytopes" in the Combinatorics seminar at KTH Stockholm. |
16 September 2013 |
Talk "Gitterpolytope - von Ehrhart-Theorie zu kombinatorischen Hodgezahlen" at TU Berlin. |
1-4 August 2013 |
Coorganizer (with Ivan Soprunov) of minisymposium "Toric geometry, Lattice points, and Applications" at the
SIAM Conference on Applied Algebraic Geometry 2013, Colorado State University. |
Aug. 2013 - Current |
Senior Lecturer (Associate Professor) at Stockholm University. |
17-21 June 2013 |
Research stay at LAMA Chambery, invited by Frederic Bihan, and Colloquium talk "Ehrhart polynomials and A-Discriminants". |
3-7 June 2013 |
Talk "Lattice polytopes with a view toward algebraic geometry" as invited speaker at MEGA 2013 (Effective Methods in Algebraic Geometry) in Frankfurt.
|
6-7 April 2013 |
Talk "From Ehrhart theory to almost-neighborly polytopes"
at AMS special session on "Discrete Geometry of Polytopes" at Boston College. |
23-27 January 2013 |
Research stay at San Francisco State University, invited by Matthias Beck, and talk "From Ehrhart theory to almost-neighborly point
configurations" in the Combinatorics Seminar. |
29 November 2012 |
Talk "Ehrhart-Theorie, A-Diskriminanten und kombinatorische Hodgezahlen" at Hannover University. |
22-27 November 2012 |
Research stay at KTH Stockholm, invited by Sandra Di Rocco. |
20-21 October 2012 |
Coorganizer of AMS Special Session "Toric Algebraic Geometry and Beyond" at the
AMS Central Fall Section Meeting, University of Akron. |
16 October 2012 |
Talk "On Ehrhart's volume conjecture" in the Analysis seminar at CWRU. |
19-24 August 2012 |
Talk "Recent developments in the geometry of numbers of lattice polytopes" at minisymposium "Integer points in polytopes" of
21st International Symposium on Mathematical Programming at Berlin, Germany. |
17-18 August 2012 |
Participation at Symposium on Discrete Mathematics (Tagung der Fachgruppe Diskrete Mathematik) at TU Berlin. |
13-16 August 2012 |
Talk "Von Ehrhart-Theorie zu fast-nachbarschaftlichen Polytopen" in the research seminar of Algorithmic Discrete Mathematics at TU Darmstadt, invited by Michael Joswig and Andreas Paffenholz. |
30 July - 3 Aug. 2012 |
Poster "Permutation Polytopes of Cyclic Groups" at FPSAC 2012 at Nagoya University. |
23 - 27 July 2012 |
Talk "Ramifications of the degree of lattice polytopes" at Workshop Convex Polytopes at Kyoto University. |
5 - 20 July 2012 |
Stay at the Research Group Lattice Polytopes
at the Goethe Universität Frankfurt am Main. |
4 - 9 June 2012 |
Talk "Multiples of lattice polytopes with no interior lattice points" (Video) at Conference dedicated to Askold G. Khovanskii at Independent University of Moscow. |
15-21 April 2012 |
Talk "Combinatorial questions related to stringy E-polynomials of Gorenstein polytopes" at the Workshop "Toric Geometry" at Oberwolfach. |
10-11 March 2012 |
Talk "A combinatorial generalization of the degree of lattice polytopes" at AMS special session on "Combinatorics: Algebraic and Geometric" at University of South Florida. |
15-18 February 2012 |
Visit and colloquium talk of Matthias Beck at CWRU. |
29 November 2011 |
Talk "The geometry of numbers of lattice polytopes" in the Analysis Seminar at CWRU.
|
4 November 2011 |
Colloquium talk "Ehrhart theory in practice" at
Cleveland State University. |
28-30 October 2011 |
Participation at AGNES meeting at Stony Brook. |
16 September 2011 |
Colloquium talk "Ehrhart theory in practice" at
Case Western Reserve University. |
Aug. 2011 - July 2013 |
Tenure-track assistant professor at Case Western
Reserve University. |
11-13 July 2011 |
Visit at the Universität Bielefeld, invited by Barbara
Baumeister. |
25-28 June 2011 |
Talk "Toric Fano varieties and lattice polytopes" at the "Memorial Conference for Maximilian
Kreuzer" in Vienna.
Max was a coauthor of two papers with an amazing, supportive personality. While being a string
theorist, his groundbreaking work and interest in lattice polytopes was an
enduring source of inspiration for me.
He passed away in 2010 at the age of just 50 years. His loss is strongly
felt.
|
9 June 2011 |
Invited talk "Lattice polytopes with a view toward toric geometry"
at the
conference "Toric Geometry and
Applications" in Leuven. |
2 June 2011 |
Talk "Adjunction theory and dual defect of polarized toric
varieties"
in The
MAGIC Seminar at Imperial College
London, invited by Alexander Kasprzyk.
|
27 May 2011 |
Talk "Lattice
Polytopes and Geometry of Numbers" at the Institut für Mathematische Optimierung at the Universität
Magdeburg, invited by Gennadiy Averkov.
|
5-7 May 2011 |
Participation at workshop "Discrete,
Tropical and
Algebraic Geometry" in Frankfurt |
1 May - 31 July 2011
|
Stay at the Research Group Lattice Polytopes
at the Goethe Universität Frankfurt am Main. |
31 March 2011 |
Talk "Experimental Mathematics with Lattice Polytopes" in the Math Club at
UGA. |
14-18 March 2011 |
Visit of Jan
Schepers at UGA. |
12-13 March 2011 |
Talk
"Adjunction-theoretic invariants of polarized toric varieties"
in the AMS Special Session on "Algebraic Geometry"
at the 2011 Spring Southeastern Section Meeting at
Statesboro, GA. |
3 February 2011
|
Talk
"Adjunktionstheorie und Gitterpolytope" in the Oberseminar Algebraische
Geometrie at the Fachbereich
Mathematik
of the Eberhard
Karls
Universität Tübingen. |
17 January - 26 February 2011 |
Stay at the Mittag-Leffler Institute
in Stockholm as participant in the program
"Algebraic Geometry with a view towards applications". |
6-9 January 2011 |
Talk
"Polyhedral Adjunction Theory"
in the AMS Special Session on "Combinatorial Algebraic Geometry"
at the 2011 Joint Mathematics Meetings in New
Orleans. |
21-24 October 2010 |
Attendance of the conference "Compact Moduli and Vector Bundles" at UGA. |
4 October 2010 |
Talk "Reflexive
polytopes, Gorenstein
polytopes, and combinatorial mirror symmetry"
in the CATS Seminar
at the University of Kentucky,
invited by Ben Braun. |
1 October 2010 |
Volunteer at the High School Varsity Math Tournament at UGA.
|
1 September 2010 |
Talk "Stringy E-functions of Gorenstein polytopes" in the
Algebraic Geometry Seminar at UGA.
|
20. June - 7. August 2010 |
Research stay at the
Research Group Lattice Polytopes at the Freie Universität Berlin on
invitation of
Christian Haase. |
10. June 2010 |
Talk "Dual defect toric manifolds and the Cayley polytope conjecture"
in the Computational Algebra Seminar at the University of Sydney.
|
30. May - 20. June 2010 |
Research stay at the
Computational Algebra Group at the University of Sydney on
invitation of
Alexander Kasprzyk. |
3. Feb. 2010 |
Talk "On projective toric manifolds with dual defect" in the
Algebraic Geometry Seminar at UGA.
|
Jan. 2010 - July 2011 |
Postdoc in the Research
Group Geometry
at the
University of Georgia. |
11. Dez. 2009 |
Talk "A simple condition for a projective toric manifold to have dual defect" in the
Postdoctoral seminar at the MSRI.
|
20. Nov 2009 |
Talk "'Hollow' Lattice Polytopes" in the
Algebra and Discrete Mathematics
Seminar at UC Davis, invited by Jesús de Loera.
|
19.-23. Oct. 2009 |
Participant of the Workshop II: Combinatorial Geometry at the Institute for
Pure and Applied Mathematics at UCLA.
|
Aug. - Dec. 2009 |
Postdoc at the Mathematical Sciences Research
Institute as a participant of the Tropical
Geometry program. |
22.-24. June 2009 |
Visit of Alexander Kasprzyk
from the University of Kent at our research group. |
20. May 2009 |
Talk "Hollow lattice polytopes and Ehrhart theory" at the Combinatorics seminar
at
KTH Stockholm.
|
18. - 24. May 2009 |
Research stay at the
Algebraic geometry group at KTH Stockholm on
invitation of
Sandra Di Rocco. |
27. April - 1. May 2009 |
Participant of the workshop
"Combinatorial challenges in toric varieties" at the American Institute of Mathematics, Palo Alto.
|
25. - 26. April 2009 |
Talk "Bounds on lattice polygons and the classification of toric log Del Pezzo surfaces"
at the Special Session on Algebra and Number Theory with Polyhedra at the
AMS Meeting at San Francisco State University.
|
Summer term 2009 |
Lecture "Discrete Mathematics III - Integer Polyhedra" at the FU Berlin as part of the Berlin Mathematical School
in joint work with Christian Haase and Andreas Paffenholz. |
1. April 2009 |
Talk
"'Hollow' Lattice Polytopes - From Geometry of Numbers
to
Adjunction Theory" at the Discrete Math Seminar at UC Berkeley, invited by Raman Sanyal.
|
23. - 27. March 2009 |
Participant of the workshop
"Combinatorial, Enumerative and Toric Geometry" at the MSRI, Berkeley.
|
9.-13. February 2009 |
Visit of Sandra Di Rocco from KTH
Stockholm at our research group. |
12.-16. January 2009 |
Visit of Sam Payne
(U Stanford) and
Alan Stapledon (U Michigan)
at our research group. |
4.-10. Jan. 2009 |
Participant of the Workshop
"Toric Geometry" at Oberwolfach.
|
3. Dez. 2008 |
Participant of the one-day-workshop
"The North German Plain Goes Tropical"
at the Courant Research Center, University of Göttingen.
|
2. Dez. 2008 |
Talk "Lattice
Polytopes and Geometry of Numbers" at the Oberseminar
of the Institute for Algebra and Geometry at the Universität
Magdeburg, invited by Martin Henk.
|
15. Nov. 2008 |
Talk "Lattice width directions and Minkowski's 3^d-theorem"
at the conference on combinatorics "KolKom 2008"
at the
Universität Magdeburg.
|
14.-20. Sept. 2008 |
Coorganizer of the Minisymposium
"Algebraische und geometrische
Kombinatorik" at the 2008 DMV Jahrestagung (annual conference of the German Mathematical
Society) at Erlangen.
|
13. July - 3. Aug. 2008 |
Participant of the workshop
""P.R.A.G.MAT.I.C.
2008" (Free resolutions and Hilbert series) at the University of Catania, Sicily.
|
9. July 2008 |
Participant of the one-day-workshop
"A tropical Wednesday in
Göttingen" at the Courant Research
Center, University of Göttingen.
|
10.-12. Jan. 2008 |
Attendance at the PhD defense of Mikkel Øbro at the
University
of Aarhus. |
10. Dec. 2007 |
Colloquium "The degree of
lattice
polytopes"
at the Graduiertenkolleg Methods
for Discrete Structures at Freie Universität Berlin.
|
12. Oct. 2007 |
Talk "The degree of lattice polytopes"
at the
Algebra-Geometry-Combinatorics
Seminar at San Francisco State University, invited by Joseph
Gubeladze.
|
10. Oct. 2007 |
Talk "The degree of lattice
polytopes" at
the Combinatorics
and Geometry Seminar at Stanford University.
|
8. - 17. October 2007 |
Research stay at Stanford University on
invitation of Sam Payne. |
6. - 7. Oct. 2007 |
Talk "Combinatorial aspects of mirror
symmetry"
at the Special
Session on Toric Varieties of the Fall Eastern Section
Meeting of the AMS at Rutgers University.
|
2. Oct. 2007 |
Talk "The degree of lattice polytopes"
at the Combinatorics Seminar
at the University of Minnesota, invited by Milena Hering. |
2. Oct. 2007 |
Talk "Fast food, square magic, and
polyhedra" at the Postdoc Seminar
at the IMA in Minneapolis. |
12. - 18. Aug. 2007 |
Participant of the Mini-Workshop
"
Projective Normality of Smooth Toric Varieties" at Oberwolfach
(projective
normality webpage).
|
Summer term 2007 |
Lecture "Combinatorial
Commutative Algebra" at the FU Berlin in joint work with Christian
Haase. |
2.-13. July 2007 |
Visit of Mikkel Øbro
from the
University
of Aarhus at our research group. |
18. - 22. June 2007 |
Talk "Combinatorial aspects of toric
geometry and mirror symmetry - open problems" at GAeL XV in
Istanbul. |
12. March 2007 |
Talk at the workshop on
"Gorenstein and reflexive polytopes"
at the Free University of Berlin. |
6.-12. Dec. 2006 |
Visit of Jaron Treutlein from the University
of Tuebingen at our research group. |
16.-18. Nov. 2006 |
Talk "Permutation polytopes" at the
conference on combinatorics "KolKom
2006" at the Universität Magdeburg. |
18. Oct. 2006 |
Received the thesis-award "Promotionspreis" of the University of
Tuebingen
in the subject Mathematics. |
26. - 30. June 2006 |
Research stay at the Institute for Theoretical Physics of the Technical University of Vienna
on invitation of
Maximilian Kreuzer. |
11. - 15. June 2006 |
Talk "Degree of lattice polytopes" at the
Joint
Summer Research Conference "Integer points in polyhedra.
Geometry,
Number Theory, Representation Theory, Algebra, Optimization, Statistics
" at Snowbird. |
11.-16. March 2006 |
Visit of Boris Pasquier from Institute Fourier at our research group. |
Summer term 2006 |
Lecture "Convex
Geometry"
at the FU Berlin. |
29. Jan. - 4. Feb. 2006 |
Participant of the Workshop
"Convex
and
Algebraic Geometry" at Oberwolfach.
|
Oct. 2005 - July 2009 |
Postdoc in the Research
Group Lattice Polytopes
at the FU Berlin lead by Christian
Haase. |
20. - 26. Aug. 2005 |
Talk "Reflexive polytopes - Combinatorics and Convex Geometry" at
Euroconference in Mathematics on Crete
- Algebraic and Geometric
Combinatorics in Anogia
|
4. Aug. 2005 |
Participant of "2005 Duke-Berlin
Geometry and Physics
Festival" in Berlin
|
16. Nov. 2004 |
Talk "Reflexive polytopes" at Duke University, invited by
Christian Haase
|
11. Nov. 2004 |
Talk "Reflexive polytopes" at the University of Michigan 09/11/2004,
invited by Milena Hering
|
12.-17. Sept. 2004 |
Participant of 2004 DMV Jahrestagung (annual conference of the German Mathematical
Society) at Heidelberg
|
28. Jan. 2004 |
Talk "Gorenstein toric Fano varieties and reflexive
polyhedra" at Freie Universität Berlin, invited by
Klaus Altmann |
26. Jan. - 1. Feb. 2003 |
Participant and editor of the report of the Workshop
"
Combinatorics, Convexity and Algebraic Geometry" at Oberwolfach.
(Here are some pictures by Allen
Knutson.) |
Oct. 2001 - July 2005 |
PhD student at the Research Group Algebra of
the Eberhard Karls Universität
Tübingen advised by Victor V.
Batyrev. |