928 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of California, BerkeleyUS148 papers
- California Institute of TechnologyUS66 papers
- Carnegie Institution for ScienceUS63 papers
- University of California, Santa CruzUS63 papers
- Center for Astrophysics Harvard & SmithsonianUS58 papers
- Tel Aviv UniversityIL55 papers
- Carnegie ObservatoriesUS54 papers
- Universitat Autònoma de BarcelonaES48 papers
- Space Telescope Science InstituteUS45 papers
- Institute for High Energy PhysicsES39 papers
- University of Hawaii SystemUS39 papers
- Yale UniversityUS39 papers
5 papers · 2 filters
Matroid polytopes and their volumes
Federico Ardila, Carolina Benedetti, Jeffrey Doker
We express the matroid polytope of a matroid as a signed Minkowski sum of simplices, and obtain a formula for the volume of . This gives a combinatorial expression f…
When do two planted graphs have the same cotransversal matroid?
Federico Ardila, Amanda Ruiz
Cotransversal matroids are a family of matroids that arise from planted graphs. We prove that two planted graphs give the same cotransversal matroid if and only if they can be obta…
Combinatorics and geometry of power ideals
Federico Ardila, Alexander Postnikov
We investigate ideals in a polynomial ring which are generated by powers of linear forms. Such ideals are closely related to the theories of fat point ideals, Cox rings, and box sp…
Discrete piecewise linear functions
Sergei Ovchinnikov
The concept of permutograph is introduced and properties of integral functions on permutographs are established. The central result characterizes the class of integral functions th…
On the Log-Concavity of Hilbert Series of Veronese Subrings and Ehrhart Series
Matthias Beck, Alan Stapledon
For every positive integer , consider the linear operator $\U_{n}$ on polynomials of degree at most with integer coefficients defined as follows: if we write $\frac{h(t)}{(1…