1996
DOI: 10.1016/0040-9383(95)00037-2
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Mapping class group of a surface is generated by two elements

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Cited by 44 publications
(30 citation statements)
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“…We also prove that the extended mapping class group Mod * g,1 is generated by two elements, again one of which is a Dehn twist. Our proofs are independent from that of Wajnryb [8]. Next, we prove that the mapping class groups Mod g,1 and Mod g are also generated by two torsion elements.…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…We also prove that the extended mapping class group Mod * g,1 is generated by two elements, again one of which is a Dehn twist. Our proofs are independent from that of Wajnryb [8]. Next, we prove that the mapping class groups Mod g,1 and Mod g are also generated by two torsion elements.…”
Section: Introductionmentioning
confidence: 99%
“…, a 2g on Σ also generate Mod 1 g . Finally, the minimal number of generators for the mapping class group is determined by Wajnryb [8]. He showed that Mod 1 g , and hence Mod g , can be generated by two elements; one is a product of two Dehn twists (one is right and one is left) and the other is a product of 2g Dehn twists.…”
Section: Introductionmentioning
confidence: 99%
“…The calculation of G:H for a compact Calabi-Yau space is an interesting and challenging problem. By analogy with the mapping class group of a genus-g Riemann surface [18], we may expect that G:H is finite. In fact, the monodromy group H can be generated by two elements, which correspond to monodromies around the conifold point and infinity.…”
Section: Conclusion and Further Issuesmentioning
confidence: 99%
“…Geometric properties of M played a crucial role in the problem of finding particular sets of generators for M g and M ± g cf. [3,7,8,11]. Following [1], let t 1 , s 1 , .…”
Section: Preliminariesmentioning
confidence: 99%
“…It is known that this set of generators of M g is not minimal, and a great deal of attention has been paid to the problem of finding a minimal (or at least small) set of generators or a set of generators with some additional property. For different approaches to this problem see [3,5,7,8,10,11] and references there. The main purpose of this note is to prove that for g ≥ 1 the extended mapping class group M ± g is generated by three symmetries, i.e.…”
Section: Introductionmentioning
confidence: 99%