Tate shafarevich group
WebRIMS Kôkyûroku Bessatsu B32 (2012), 51−60 The p‐parts of Tate‐Shafarevich Groups of Elliptic Curves Dedicated to Takeshi Tsuji By Florian E. Ito SPRUNG* Abstract We give an overview of Iwasawa theory for elliptic curves, and what this theory can tell us about the size of the Tate‐Shafarevich group in towers of number fields. What is new is that we … WebFridays, 16:00 - 18:00 in April / May / June / July 2024. Math. Institute, 0.008. The first part of the seminar is devoted to Lagrangian fibrations on Hyperkahler manifolds and their Brauer twists (#twist-seminar-2024), and the rest of the seminar will be talks on preprints / work in progress by the group members. Everyone is welcome to attend.
Tate shafarevich group
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WebThe Mordell{Weil group EpFq, the p8-Selmer group Sel p8pE{Fqand the p-primary part of Tate{Shafarevich group X pE{Fqrp8sare related by the following exact sequence: 0 ÑEpFqbQ p{Z pÑSel p8pE{FqÑX pE{Fqrp8sÑ0: This sequence may be called the p8-descent of E{F. Then we have an in-equality 0 ⁄r MWpE{Fq⁄r ppE{Fq; where the equality r MWpE{Fq r WebFor instance quantum groups, that is Hopf algebras, have been familiar to theoretical physicists for a while now. Nowdays many examples of symmetries of categorical flavor -- categorical groups, groupoids, Lie algebroids and their higher analogues -- appear in physically motivated constructions and faciliate constructions of geometrically sound …
WebNow we can define the Selmer group and the Tate-Shafarevich group. Definition 1.1 (Selmer group). The Selmer group, denoted S(n)(E=K) is defined by S(n)(E=K) = ker H1(G K;E[n]) ! Y v H1(G K v;E)!: 2. Mordell-Weil Definition1.2 (Tate-Shafarevichgroup). TheTate-Shafarevichgroup,denotedX(E=K),isde-fined by X(E=K) = ker Webis now known to be equivalent to the finiteness of the Tate–Shafarevich group, [20], [17, Corollary 9.7]. 4. A proof of the conjecture in the stronger form would give an effective means of finding generators for the group of rational points. Actually, one only needs the integrality of the term X C in the expression for L∗(C,s) above ...
WebON THE TATE-SHAFAREVICH GROUP OF A NUMBER FIELD 7 In fact, since H1(K v;K v) = 0 by Hilbert’s Theorem 90, X(K) may be defined purelyintermsofthenon … http://sporadic.stanford.edu/reference/arithmetic_curves/sage/schemes/elliptic_curves/sha_tate.html
WebMay 11, 2024 · Han Wu. For any number field, we prove that there exists an elliptic curve defined over this field such that its Shafarevich-Tate group has a nontrivial 2-torsion …
WebTate–Shafarevich group of Jacobian of Selmer curve 3 X 3 + 4 Y 3 + 5 Z 3 = 0. C / Q: 3 X 3 + 4 Y 3 + 5 Z 3 = 0 is known to be a nontrivial element of the Tate–Shafarevich group of the … magnetic toner for brother printerWebTexts with language specifed as french OR fre magnetic tool padWebAs a preliminary remark, note that the Tate-Shafarevich group also measures a certain defect, just like the class group. Its elements correspond to homogeneous spaces that have points everywhere locally but no global points. This is explained e.g. in Silverman. ny times halloweenWebConjecture 1. (Shafarevich and Tate) The group X(E=Q) is nite. These two invariants, the rank rand the Tate-Shafarevich group X(E=Q), are encoded in the Selmer groups of E. Fix a prime p, and let E(p) denote the Gal(Q =Q)-module of all torsion points of Ewhose orders are powers of p. The Selmer group S p(E=Q) is de ned by the following exact ... magnetic tool face vs gravity tool faceWebNéron models, Tamagawa factors, and Tate-Shafarevich groups Brian Conrad October 14, 2015 1 Motivation LetRbeadiscretevaluationring, F= Frac(R), andkitsresiduefield. Let Abe anabelianvarietyoverF. ... commutative k-groups cannot: they have no nontrivial torsion away from char(k) andtoomuchp-powertorsionwhenchar(k) = p>0. nytimes halftimeWeba G-lattice. The cyclic Tate-Shafarevich group X2 cycl(G,M) is the group X2 cycl(G,M) = Ker[H2(G,M) → Y g∈G H2(hgi,M)]. We recall a result of Colliot-Thélène and Sansuc: Theorem 2.3. Let Gbe a finite group, let T be a k-torus, and assume that the character group of T is a G-lattice via a surjection Γk → G. Let Tc be a nytimes haiti cholera hearingWebpothesis and the finiteness of Tate–Shafarevich groups of elliptic curves. Várilly-Alvarado and Viray show this in [VAV] (see Theorem 5.3) in applying a deep theorem of Witten-berg [Wi2, Théorème 1.1] (see also [Wi1]) on genus 1 fibrations. Y →. P. 1, and checking that the conditions of his theorem are satisfied. magnetic tool mat