Hopf algebras and congruence subgroups/
Sommerhauser, Yorck 1966-
Hopf algebras and congruence subgroups/ Yorck Sommerhauser, Yongchang Zhu. - Providence, R.I.: American Mathematical Society, c2012. - v, 134 p.: ill.; 26 cm. - Memoirs of the American Mathematical Society, no. 1028 0065-9266; . - Memoirs of the American Mathematical Society; no. 1028. .
"September 2012 , volume 219, number 1028 (first of 5 numbers)."
Includes bibliographical references (p. 125-128) and indexes.
9780821869130 (alk. paper) 0821869132 (alk. paper)
2012015550
Hopf algebras.
Modular groups.
Hopf algebras and congruence subgroups/ Yorck Sommerhauser, Yongchang Zhu. - Providence, R.I.: American Mathematical Society, c2012. - v, 134 p.: ill.; 26 cm. - Memoirs of the American Mathematical Society, no. 1028 0065-9266; . - Memoirs of the American Mathematical Society; no. 1028. .
"September 2012 , volume 219, number 1028 (first of 5 numbers)."
Includes bibliographical references (p. 125-128) and indexes.
9780821869130 (alk. paper) 0821869132 (alk. paper)
2012015550
Hopf algebras.
Modular groups.