WebHASSE–WITT AND CARTIER–MANIN MATRICES 5 1.3. Adjointness. Let V be the dual vector space of V and let (;): V V !Kbe the natural pairing. Continue to let f: V !V be … WebHASSE–WITT AND CARTIER–MANIN MATRICES: A WARNING AND A REQUEST JEFFREY D. ACHTER AND EVERETT W. HOWE ABSTRACT.Let X be a curve in positive characteristic. A Hasse–Witt matrix for X is a matrix that represents the action of the Frobenius operator on the cohomology group H1(X,O X) with respect to
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WebHere is a useful repository of articles on Witt vectors. (The functor of p-typical Witt vectors provides the right adjoint to the forgetful functor from delta rings to rings.) ... 10 and 11; note that the proof of the connection between the Cartier operator on holomorphic differentials and the Hasse--Witt matrix that I give in my notes is ... WebOct 29, 2024 · Hasse–Witt matrix and the Cartier –Manin matrix that began with Manin; we have already noted Lemma D [ 14 , p. 386], which says that the two matrices are “identified” with one another . 5.
WebJan 1, 2024 · This matrix is closely related to the Hasse-Witt matrix B of X, which is defined as the matrix of the p-power Frobenius operator acting on H 1 (X, O X ) with respect to some basis. In mathematics, the Hasse–Witt matrix H of a non-singular algebraic curve C over a finite field F is the matrix of the Frobenius mapping (p-th power mapping where F has q elements, q a power of the prime number p) with respect to a basis for the differentials of the first kind. It is a g × g matrix … See more This definition, as given in the introduction, is natural in classical terms, and is due to Helmut Hasse and Ernst Witt (1936). It provides a solution to the question of the p-rank of the Jacobian variety J of C; the p-rank is bounded by … See more The p-rank of an abelian variety A over a field K of characteristic p is the integer k for which the kernel A[p] of multiplication by p has p points. It may … See more The interpretation for sheaf cohomology is this: the p-power map acts on H (C,OC), or in other words the first cohomology of C with coefficients in its structure sheaf. This is now called the Cartier–Manin operator (sometimes just … See more The case of elliptic curves was worked out by Hasse in 1934. Since the genus is 1, the only possibilities for the matrix H are: H is zero, Hasse invariant 0, p-rank 0, the supersingular case; or H non-zero, Hasse invariant 1, p-rank 1, the ordinary case. Here there is a … See more
WebThe matrix W p depends on the equation y2 = f(x) mod pfor the curve C p, but its conjugacy class, and in particular, its characteristic polynomial, is an invariant of the function eld of C p. The Hasse{Witt matrix W pis closely related to the zeta function (1) Z p(T) := exp X1 k=1 #C p(F pk) k Tk! = L p(T) (1 T)(1 pT): Indeed, the numerator L ... WebFeb 13, 2014 · Our method employs the Hasse-Weil bounds in conjunction with the Hasse-Witt matrix for superelliptic curves, whose entries we express in terms of multinomial coefficients. We present a fast ...
WebSep 1, 2024 · Hasse-Witt matrices, unit roots and period integrals Authors: An Huang Bong H. Lian Brandeis University Shing-Tung Yau Chenglong Yu Tsinghua University Abstract
Weblawsintexas.com headphones varietyWebrecurrence relations used to derive the Hasse{Witt matrix in [1], whose coe cients do depend on p, and which are analogous to the ‘horizontal reductions’ in [10] and [12]. Second, we only need to know the coe cients of each vector v n modulo p= 2n+ 1. The essential di culty here is that the modulus is di erent for each n. Following [12], we use gold star dog training brunswick ohioWebMay 4, 2024 · We also give a basis of the de Rham cohomology of Artin–Schreier curves. By computing the rank of the Hasse–Witt matrix of the curve, we also give bounds on the a ‑number of trigonal curves of genus 5 in small characteristic. Keywords Cartier operator, Cartier–Manin matrix, Hasse–Witt matrix, Artin–Schreier curve, trigonal curve, a ... goldstar discount code for ain\u0027t too proudWebComputing Hasse-Witt matrices of hyperelliptic curves in average polynomial time Computing Hasse-Witt matrices of hyperelliptic curves in average polynomial time David … headphones vector imageWebVia Serre duality, one can formally relate the Hasse-Witt matrix, which is defined in terms of the p -power Frobenius acting on H 1 ( C, O C), where O C is the structure sheaf, with … headphones vegokWebSep 1, 2016 · For all i, j = 1, …, M, the coefficient A ¯ i j (Λ) of the Hasse–Witt matrix is a mod p solution of the A-hypergeometric system with parameter β = − a j +. Remark 1. … gold star dome trainWebFeb 13, 2014 · Computing Hasse-Witt matrices of hyperelliptic curves in average polynomial time David Harvey, Andrew V. Sutherland We present an efficient algorithm … goldstardirect