【摘 要】
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The mapping class groups of surfaces can be generated by only torsion elements.This talk will discuss how to reduce the number and the order of such torsion elements.In the case of extended mapping cl
【机 构】
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South China University of Technology
【出 处】
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Workshop on Geometric Group Theory(几何群论研讨会)
论文部分内容阅读
The mapping class groups of surfaces can be generated by only torsion elements.This talk will discuss how to reduce the number and the order of such torsion elements.In the case of extended mapping class groups,which include the orientation reversing mapping classes,we prove that such groups can be generated by two torsion elements when the genus of the surface is no less than 5.The order of these two generating elements are 2 and 4g+2.
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