Abstract
We study the map which sends vectors of polynomials into their Wronski determinants. This defines a projection map of a Grassmann variety which we call a Wronski map. Our main result is computation of degrees of the real Wronski maps. Connections with real algebraic geometry and control theory are described.
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Eremenko, Gabrielov Degrees of Real Wronski Maps. Discrete Comput Geom 28, 331–347 (2002). https://doi.org/10.1007/s00454-002-0735-x
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DOI: https://doi.org/10.1007/s00454-002-0735-x