On Certain Properties of Separable Spaces.
نویسنده
چکیده
3Cf. Fubini, loc. cit., p. 54. 4 If the determinant gx, I for x, ,u = 1, ,(q < n) is zero, real quantities e are defined by the equations gxtx = 0. The vector with the components 0, {a = o (or = q + 1, ... . n) is a real null vector, which is impossible, if the fundamental form is definite. In a similar manner it can be shown that the determinant I gjt for a-,= 1, ..., p cannot be zero for a definite form. 6 Cf. Bianchi, Lezioni sulla leoria dei gruppi continui finiti di trasformazioni, p. 521, 1918.
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ورودعنوان ژورنال:
- Proceedings of the National Academy of Sciences of the United States of America
دوره 18 2 شماره
صفحات -
تاریخ انتشار 2005