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Helmut Röhrl

as annotator and editor: Adolf Hurwitz, Richard Courant Lehrbuch der Funktionentheorie, Springer Verlag, 4th edn.

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In 1964 he edited the new edition of the classic textbook on function theory by Adolf Hurwitz and Richard Courant.

Routh–Hurwitz stability criterion

German mathematician Adolf Hurwitz independently proposed in 1895 to arrange the coefficients of the polynomial into a square matrix, called the Hurwitz matrix, and showed that the polynomial is stable if and only if the sequence of determinants of its principal submatrices are all positive.

see also