TY - BOOK AU - Calegari,Frank AU - Venkatesh,Akshay TI - Ttorsion Jacquet-Langlands correspondence T2 - Asterisque SN - 9782856299036 U1 - 510=4 23 PY - 2019/// CY - Paris : PB - Societe Mathematique de France, KW - Torsion theory (Algebra) KW - Homological algebra KW - Hyperbolic spaces N1 - Includes bibliographical references and index; Some background and motivations -- Notation -- Raising the level: new forms and old forms -- The split case -- Comparisons between Jacquet-Langlands pairs -- Numerical examples ER -