霍普夫代数上惰性2-上圈的扩张及其提升射影表示
Extending lazy 2-cocycles on Hopf algebras and lifting projective representations afforded by them
摘要：
本文研究了与懒惰2-上圈有关的一些问题，如：（懒惰）2-上圈到Drinfeld双圈和Radford双积的扩张，懒惰2-上圈的Yetter-Drinfeld数据，懒惰2-上圈的射影表示的提升.
英文摘要：
We study some problems related to lazy 2-cocycles, such as: extension of (lazy) 2-cocycles to a Drinfeld double and to a Radford biproduct, Yetter-Drinfeld data obtained from lazy 2-cocycles, lifting of projective representations afforded by lazy 2-cocycles.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
