Explicit arithmetic of Jacobians of generalized Legendre curves over global function fields / Lisa Berger, Chris Hall, Rene Pannekoek, Jennifer Park, Rachel Pries, Shahed Sharif, Alice Silverberg, Douglas Ulmer.

Author/creator Berger, Lisa, 1969-
Format Electronic
Publication InfoProvidence, RI : American Mathematical Society, [2020]
Descriptionv, 131 pages : illustrations ; 26 cm
Supplemental ContentFull text available from Ebook Central - Academic Complete
Subjects

Other author/creatorHall, Chris, 1975-
Other author/creatorPannekoek, René.
Other author/creatorPark, Jennifer Mun Young.
Other author/creatorPries, Rachel, 1972-
Other author/creatorSharif, Shahed, 1977-
Other author/creatorSilverberg, Alice.
Other author/creatorUlmer, Douglas, 1960-
SeriesMemoirs of the American Mathematical Society, 0065-9266 ; number 1295
Contents The curve, explicit divisors, and relations -- Descent calculations -- Minimal regular model, local invariants, and domination by a product of curves -- Heights and the visible subgroup -- The L-function and the BSD conjecture -- Analysis of J[p] and NS(Xd)tor -- Index of the visible subgroup and the Tate-Shafarevich group -- Monodromy of l-torsion and decomposition of the Jacobian.
Abstract "We study the Jacobian J of the smooth projective curve C of genus r-1 with affine model yr = xr-1(x+ 1)(x + t) over the function field Fp(t), when p is prime and r [greater than or equal to] 2 is an integer prime to p. When q is a power of p and d is a positive integer, we compute the L-function of J over Fq(t1/d) and show that the Birch and Swinnerton-Dyer conjecture holds for J over Fq(t1/d). When d is divisible by r and of the form p[nu] + 1, and Kd := Fp([mu]d, t1/d), we write down explicit points in J(Kd), show that they generate a subgroup V of rank (r-1)(d-2) whose index in J(Kd) is finite and a power of p, and show that the order of the Tate-Shafarevich group of J over Kd is [J(Kd) : V ]2. When r > 2, we prove that the "new" part of J is isogenous over Fp(t) to the square of a simple abelian variety of dimension [phi](r)/2 with endomorphism algebra Z[[mu]r]+. For a prime with pr, we prove that J[](L) = {0} for any abelian extension L of Fp(t)"-- Provided by publisher.
General note"Forthcoming, volume 266, number 1295."
Bibliography noteIncludes bibliographical references.
Access restrictionAvailable only to authorized users.
Technical detailsMode of access: World Wide Web
Genre/formElectronic books.
LCCN 2020032015
ISBN9781470442194 (paperback)
ISBN(pdf)

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