TY  - BOOK
AU  - Sommerh�auser,Yorck
AU  - Zhu,Yongchang
TI  - Hopf algebras and congruence subgroups
T2  - Memoirs of the American Mathematical Society, 
SN  - 9780821891087 (online)
AV  - QA613.8 .S66 2011
U1  - 512/.55 23
PY  - 2011///
CY  - Providence, R.I.
PB  - American Mathematical Society
KW  - Hopf algebras
KW  - Modular groups
N1  - "September 2012 , volume 219, number 1028 (first of 5 numbers)."; Includes bibliographical references and index; Introduction; Chapter 1. The modular group; Chapter 2. Quasitriangular Hopf algebras; Chapter 3. Factorizable Hopf algebras; Chapter 4. The action of the modular group; Chapter 5. The semisimple case; Chapter 6. The case of the Drinfel'd Double; Chapter 7. Induced modules; Chapter 8. Equivariant Frobenius-Schur indicators; Chapter 9. Two congruence subgroup theorems; Chapter 10. The action of the Galois group; Chapter 11. Galois groups and indicators; Chapter 12. Galois groups and congruence subgroups; Access is restricted to licensed institutions; Electronic reproduction; Providence, Rhode Island; American Mathematical Society; 2012
UR  - http://www.ams.org/memo/1028
UR  - http://dx.doi.org/10.1090/S0065-9266-2012-00649-6
ER  -