![Homotopy theory / Algebraic topology / Karen Vogtmann / Homotopy group / Mapping class group / Euler characteristic / Homotopy / CW complex / Out / Topology / Mathematics / Abstract algebra Homotopy theory / Algebraic topology / Karen Vogtmann / Homotopy group / Mapping class group / Euler characteristic / Homotopy / CW complex / Out / Topology / Mathematics / Abstract algebra](https://www.pdfsearch.io/img/2bb9c1caa34efe0db9e79e493aa38dec.jpg)
| Document Date: 2007-09-15 08:10:37 Open Document File Size: 261,09 KBShare Result on Facebook
Company Fn / / IndustryTerm free / weighted simple systems / sphere systems / / Organization National Science Foundation / / Person Karen Vogtmann / Allen Hatcher / / Position first author / second author / / Technology ATG / /
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