Download Arithmetic theory of elliptic curves: lectures given at the by J. Coates, R. Greenberg, K.A. Ribet, K. Rubin, C. Viola PDF

By J. Coates, R. Greenberg, K.A. Ribet, K. Rubin, C. Viola

This quantity includes the accelerated models of the lectures given through the authors on the C. I. M. E. educational convention held in Cetraro, Italy, from July 12 to 19, 1997. The papers gathered listed below are large surveys of the present study within the mathematics of elliptic curves, and in addition comprise numerous new effects which can't be stumbled on in different places within the literature. due to readability and magnificence of exposition, and to the heritage fabric explicitly integrated within the textual content or quoted within the references, the amount is definitely suited for study scholars in addition to to senior mathematicians.

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For any n 0, let Hn = H P ~Let . M, = The commutator subgroup of Gal(L,/M,) is (hpn - 1 ) X and so, if L, is the maximal abelian extension of Mn contained in L,, then Gal(L,/M,) 2 Hn x (x/(hpn - 1)X). But L, is the maximal abelian pro-p extension of M, and, by local class field theory, this Galois group is isomorphic to Z,[Mn:Qpl+l x W,, where W, denotes the group of ppower roots of unity contained in M,. Consequently, if we put t = [Mo : $,I = IAl - [M : $,I, we have Now, the structure theory for A-modules states that X/XA-torsis isomorphic to a submodule of AT,with finite index, where r = rankA(X).

This means that t P E E(Fm). Therefore, E(Fm), from which it follows that E(F,) is finitely generated. tE(F,) On the other hand, let us assume that E has good, ordinary reduction or multiplicative reduction at all primes v of F lying over p. ~E(F,), is A-cotorsion, as is conjectured. 8 very easily. Let XE denote the A-invariant of the torsion A-module XE(F,). We get the following result. 9. Under the above assumptions, one has 2 T(E,F ) . This result is due to P. Schneider. He conjectures that equality should hold here.

This group B is in fact finite and hence H1 (r,, B) = Hom(r,, B) for n >> 0. 1 follows immediately. But it is not necessary to know the finiteness of B. If y denotes a topological generator of r, then H1(I",, B) = B / ( ~ P "- 1)B. Since E(F,) is finitely generated, the kernel of yp" - 1 acting on B is finite. Now Bdiv has finite Zp-corank. It is clear that Thus, H1(rn,B) has order bounded by [B:Bdiv], which is independent of If we use the fact that B is finite, then ker(h,) has the same order as H"(rn,B), namely IE(Fn)pI.

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