Classification of affine prime regular Hopf algebras of GK-dimension one
  The classification of affine prime regular Hopf algebras of GK-dimension one is completed. As consequences, 1) we give a negative answer to an open question posed by Brown-Zhang and 2) we show that there do exist prime regular Hopf algebras of GK-dimension one which are not pointed. 
Jinyong Wu, Gongxiang Liu and Nanqing Ding
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