Witt vectors and Fermat quotient
- Autori: DI BARTOLO, A.; Falcone, G.
- Anno di pubblicazione: 2008
- Tipologia: Articolo in rivista (Articolo in rivista)
- Parole Chiave: Witt vectors, Fermat Quotients
- OA Link: http://hdl.handle.net/10447/31726
We give a representation of any integer as a vector of the Witt ring W(Z_p) and relate it to the Fermat quotient q(n) = (n^(p−1) − 1)/p. Logarithms are introduced in order to establish an isomorphism between the commutative unipotent groups 1+ pW(Z_p) and W(Z_p).