71 citations · 300 across the 27 of their papers we have counts for
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math.CA2015★ 19 cited
Matrix positivity preservers in fixed dimension. I
Alexander Belton, Dominique Guillot, Apoorva Khare +1
A classical theorem proved in 1942 by I.J. Schoenberg describes all real-valued functions that preserve positivity when applied entrywise to positive semidefinite matrices of arbit…
math.CO2015★ 17 cited
Critical exponents of graphs
Dominique Guillot, Apoorva Khare, Bala Rajaratnam
The study of entrywise powers of matrices was originated by Loewner in the pursuit of the Bieberbach conjecture. Since the work of FitzGerald and Horn (1977), it is known that $A^{…