Let *A* be an Real Square Matrix and let and be real numbers with
. Then Grothendieck showed that there exists a constant independent of both *A* and satisfying

(1) |

(2) |

(3) |

**References**

Krivine, J. L. ``Sur la constante de Grothendieck.'' *C. R. A. S.* **284**, 8, 1977.

Le Lionnais, F. *Les nombres remarquables.* Paris: Hermann, p. 42, 1983.

© 1996-9

1999-05-25