Date | Apr 28, 2023 |
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Speaker | 정진호, 김성호 |

Dept. | 서울대학교 |

Room | 27-325 |

Time | 13:00-18:00 |

Let K be an unramified quadratic extension of Q_p for a fixed p > 2. Projective general linear groups G = PGL(2,K) and H = PGL(2,Q_p) act transitively on Bruhat-Tits trees T_G and T_H , respectively. We showed the rigidity of H-orbits in ΓG when Γ is a Schottky subgroup of G which gives a graph ΓT_G infinite volume under certain additional conditions

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