On the Pedal Quartics of a Quadric

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Authors

DOI:

https://doi.org/10.18311/jims/1937/17339

Abstract

In a previous paper the author has discussed at length the classical theory of normals to a system of confocal quadrics and has studied in detail certain loci of points and lines which arise in considering the relations of a linear complex to a quadric Q of the system singled out.