On the structure of the top homology group of the johnson kernel

HIGHLIGHTS

• Who: Igor A Spiridonov from the (UNIVERSITY) have published the research: On the structure of the top homology group of the Johnson kernel, in the Journal: (JOURNAL)

SUMMARY

Let †g be a compact oriented genus-g surface. Let Mod.†g / D 0.HomeoC.†g // be the mapping class group of †g, where HomeoC.†g / is the group of orientation-preserving homeomorphisms of †g. The Johnson kernel Kg is the subgroup of Ig generated by all Dehn twists about separating curves. Johnson proved that the group Kg can also be defined as the kernel . . .

 



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