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math.NA2022
Fast multiplication, determinants, and inverses of arrowhead and diagonal-plus-rank-one matrices over associative fields
Nevena Jakovcevic Stor, Ivan Slapnicar
The article considers arrowhead and diagonal-plus-rank-one matrices in F^(nxn) where F in R,C or H. H is a non-commutative field of quaternions. We give unified formulas for fast m…
math.NA2021
Fast optimization of viscosities for frequency-weighted damping of second-order systems
Nevena Jakovcevic Stor, Tim Mitchell, Zoran Tomljanovic +1
We consider frequency-weighted damping optimization for vibrating systems described by a second-order differential equation. The goal is to determine viscosity values such that eig…