WebFeb 9, 2024 · Hilbert symbol Let K K be any local field. For any two nonzero elements a,b ∈K× a, b ∈ K ×, we define: (a,b):={+1 if z2 = ax2+by2 has a nonzero solution (x,y,z) ≠ (0,0,0) in K3, −1 otherwise. ( a, b) := { + 1 if z 2 = a x 2 + b y 2 has a nonzero solution ( x, y, z) ≠ ( 0, 0, 0) in K 3, - 1 otherwise. WebThe Hilbert symbol, for a field Kcontaining the group µpn of pn-th roots of unity is defined as the pairing (,)pn: K∗/K∗p n ×K∗/K∗pn → µ pn (a,b)pn = p√n b r K(a)−1 where rK: K∗→ Gab K is the reciprocity map. Since 1858 and Kummer’s work, many explicit formulas have been given for the Hilbert symbol.
[PDF] On the Hilbert symbol in cyclotomic fields - Semantic Scholar
Web1 Answer Sorted by: 6 On Q p the Hilbert symbol ( a, b) depends only on the classes of a and b modulo ( Q p ×) 2. There are eight such classes when p = 2. So, if nothing better, you can try to obtain the classes of b 2 − 4 a c and 2 a modulo ( Q 2 ×) 2 depending on a, b and c. WebJan 2, 2024 · Hilbert Symbols, Norms, and p-adic roots of unity Let p be an odd prime number, let Q p be the field of p -adic numbers, and let Q p ¯ be an algebraic closure of it. For a primitive p -th root of unity $\zeta_p \in ... nt.number-theory algebraic-number-theory class-field-theory local-fields hilbert-symbol Pablo 11.1k asked Jan 16, 2024 at 10:18 on the border mexican grill \u0026 cantina towson
Hilbert symbol - HandWiki
WebWe study the Hodge standard conjecture for varieties over finite fields admitting a CM lifting, such as abelian varieties or products of K3 surfaces. For those varieties we show that the signature predicted by the conjecture holds true modulo $4$. This amounts to determining the discriminant and the Hilbert symbol of the intersection product. The first is obtained … WebJun 2, 2024 · The Hilbert symbol is a local object, attached to a local field K v, i.e. the completion of a number field K w.r.t. a p -adic valuation v. Its main motivation: the so called explicit reciprocity laws in class field theory. Let us first recall how the local-global principle comes into play in CFT. WebHilbert modular forms and varieties Applications of Hilbert modular forms The Serre conjecture for Hilbert modular forms The next three lectures: goal on the border mobile fidelity hybrid sacd