Bloch–Kato Tamagawa number conjecture for modular forms

Let ff be a newform of even weight kk, let 0jk20\leq j\leq k-2, and assume L(f,j+1)0L(f,j+1)\neq0. Let Ω(1)j+1\Omega^{(-1)^{j+1}} denote the relevant period, uj+1u_{j+1} the associated unit factor, Tam(j+1)\operatorname{Tam}(j+1) the Tamagawa factor, \Sha(j+1)\Sha(j+1) the relevant Shafarevich–Tate group, and HQ0()H^0_{\mathbb Q}(\cdot) the indicated degree-zero Galois cohomology groups. Bloch–Kato Tamagawa number conjecture. One has

L(f,j+1)(2πi)j+1Ω(1)j+1=uj+1×Tam(j+1)#\Sha(j+1)#HQ0(j+1)#HQ0(k1j)=:C(j+1).\frac{L(f,j+1)}{(2\pi i)^{j+1} \Omega^{(-1)^{j+1}}}=u_{j+1}\times\frac{\operatorname{Tam}(j+1)\,\#\Sha(j+1)}{\#H^0_{\mathbb Q}(j+1)\,\#H^0_{\mathbb Q}(k-1-j)}=:C(j+1).

This is a special case of the Bloch–Kato conjectural interpretation of critical motivic LL-values through Galois cohomology and Selmer groups. The source presents it as a conjecture for the modular-form setting; the supplied text gives no resolution status.

Sources & referencesView supporting material

Primary source

Ken Ono, Larry Rolen and Robert Schneider, “Explorations in the theory of partition zeta functions”, arXiv:1605.05536 (2016).

Additional references

2 papers in this index state this conjecture (2016). The statement above is taken from the most recent of them; the others are arXiv:1602.00752.

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