The pp-parity conjecture for self-dual Artin twists

Let AA be an abelian variety over a number field KK, let F/KF/K be a Galois extension, let pp be a prime, and let τ\tau be a self-dual representation of Gal(F/K)\operatorname{Gal}(F/K). Write Xp(A/F)\mathcal X_p(A/F) for the corresponding pp-Selmer vector space and let w(A/K,τ)w(A/K,\tau) denote the global root number of the twist of AA by τ\tau. pp-parity conjecture for twists.

(1)τ,Xp(A/F)=w(A/K,τ).(-1)^{\langle\tau,\mathcal X_p(A/F)\rangle}=w(A/K,\tau).

This is the representation-theoretic analogue of the parity conjecture for A/KA/K, relating the multiplicity of a self-dual Artin representation in the Selmer space over FF to the twisted root number. The source frames it as an expected parity statement and supplies no general resolution.

Sources & referencesView supporting material

Primary source

Tim Dokchitser and Vladimir Dokchitser, “Regulator constants and the parity conjecture”, arXiv:0709.2852 (2009).

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