2 papers
math.CO2009
A family of reductions for Schubert intersection problems
H. Bercovici, W. S. Li, D. Timotin
We produce a family of reductions for Schubert intersection problems whose applicability is checked by calculating a linear combination of the dimensions involved. These reductions…
math.FA2007
The Horn conjecture for compact selfadjoint operators
H. Bercovici, W. S. Li, D. Timotin
We determine the possible eigenvalues of compact selfadjoint operators A,B,C... with the property that A=B+C+... When all these operators are positive, the eigenvalues were known t…