Component-group formula for the Gan–Gross–Prasad constant
Let Gn=GSpinnG_n=\operatorname{GSpin}_nGn=GSpinn and Gn+1=GSpinn+1G_{n+1}=\operatorname{GSpin}_{n+1}Gn+1=GSpinn+1, and let πn\pi_nπn and πn+1\pi_{n+1}πn+1 be cuspidal automorphic representations with conjectural global Langlands…