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math.RT2013★ 13 cited
Representations of quivers and mixed graphs
Roger A. Horn, Vladimir V. Sergeichuk
This is a survey article for "Handbook of Linear Algebra", 2nd ed., Chapman & Hall/CRC, 2014. An informal introduction to representations of quivers and finite dimensional algebras…
math.RT2013
Change of the *congruence canonical form of 2-by-2 matrices under perturbations
Vyacheslav Futorny, Lena Klimenko, Vladimir V. Sergeichuk
We study how small perturbations of a 2-by-2 complex matrix can change its canonical form for *congruence. We construct the Hasse diagram for the closure ordering on the set of *co…