A Property of Recurring Series.
نویسنده
چکیده
Wehavepi = 1,p2 = ,pl+p2 =1,whereasp = 2. Had the equations been written in the opposite order, we should have found pi = 2, P2 = 0, Pl + P2 = 2. This illustrates the fact that PI + + Pr, unlike the rank, is not an invariant. 1 Species is defined in the author's paper "Pfaffian Systems of Species One," Trans. Amer. Math. Soc., 35, 356-71 (1933). 2 Cf. Goursat, E., Probleme de Pfaff, Paris, 291 (1922). 3 Cartan, E., Invariants IntMgraux, Paris, 59 (1922). 'Vranceanu, G., Comptes Rendus, Paris, 196, 1859-61 (1933).
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ورودعنوان ژورنال:
- Proceedings of the National Academy of Sciences of the United States of America
دوره 19 10 شماره
صفحات -
تاریخ انتشار 2005