Postdoctoral researcher. Mentor: Petter Brändén.
Interests: Algebraic and Enumerative Combinatorics, polynomials with only real roots.
Preprints:
- The s-Eulerian polynomials have only real roots,
joint with C. D. Savage.
Accepted to the Trans. Amer. Math. Soc., preprint available from the arXiv:
1208.3831
Publications available online:
- Stable multivariate W-Eulerian polynomials,
joint with N. Williams.
J. Combin. Theory Ser. A, Volume 120, Issue 7, September 2013, pp. 1929--1945
PDF
Preprint available from the arXiv:
1203.0791
- The Eulerian polynomials of type D have only real roots,
joint with C.D. Savage.
Discrete Math. Theor. Comput. Sci. proc. AS, 2013, 527-538.
Extended abstract, available from
DMTCS Proceedings.
- Some remarks on the joint distribution of descents and inverse descents,
Electron. J. Combin., Volume 20, Issue 1, 2013, Research article 52, 12pp. (electronic).
PDF.
- Les polynômes eulériens stables de type B,
joint with N. Williams.
Discrete Math. Theor. Comput. Sci. proc.
AR, 2012, 297-306.
Extended abstract, available from
DMTCS Proceedings.
- Stable multivariate Eulerian polynomials and generalized Stirling permutations,
joint with J. Haglund.
European J. Combin., Volume 33, Issue 4, May 2012, Pages 477-487.
Journal version, preprint.
- On Families of Weakly Cross-intersecting Set-pairs,
joint with Z. Király, Z. L. Nagy, D. Pálvölgyi.
Fundamenta Informaticae, Volume 117, number 1-4, 2012, 189-198.
Journal version,
preprint and
slides
available.
- On the monotone hook hafnian conjecture,
Discrete Math. Theor. Comput. Sci. proc. AO, 2011, 927-934.
Extended abstract, available from DMTCS proceedings.
- Proof of the monotone column permanent conjecture,
joint with P. Brändén, J. Haglund, and D. G. Wagner.
In Notions of Positivity and the Geometry of Polynomials
(Borcea memorial volume), Birkhäuser Verlag, 2011, pp. 63-78.
Preprint available from the arXiv:
1010.2565
- On the Monotone Column Permanent conjecture,
joint with J. Haglund.
Discrete Math. Theor. Comput. Sci. proc.
AK, 2009, 443-454.
Extended abstract, available from
DMTCS Proceedings.
For earlier publications see DBLP.
Department of Mathematics
Royal Institute of Technology
SE-100 44 Stockholm
Sweden
Email: visontai [at] math.kth.se