1 citations · 1 across the 2 of their papers we have counts for
2 papers
math.CV2008★ 1 cited
Lee-Yang Problems and The Geometry of Multivariate Polynomials
Julius Borcea, Petter Brändén
We describe all linear operators on spaces of multivariate polynomials preserving the property of being non-vanishing in open circular domains. This completes the multivariate gene…
math.CO2003
Finite automata and pattern avoidance in words
Petter Brändén, Toufik Mansour
We say that a word on a totally ordered alphabet avoids the word if there are no subsequences in order-equivalent to . In this paper we suggest a new approach to the…