Nous donnons une nouvelle construction cohomologique du cœur de l'invariant de Casson et nous donnons un nouveau calcul de ses valeurs sur les générateurs du sous- groupe de Johnson du mapping class group.
We give a new cohomological construction of the core of Casson's invariant and give a new computation of its values on the generators of the Johnson subgroup of the mapping class group.
Mot clés : invariant de Casson, groupe de Torelli, mapping class group
Keywords: Casson invariant, Torelli group, mapping class group
@article{AIF_2001__51_6_1741_0, author = {Pitsch, Wolfgang}, title = {Une construction intrins\`eque du c{\oe}ur de l'invariant de {Casson}}, journal = {Annales de l'Institut Fourier}, pages = {1741--1761}, publisher = {Association des Annales de l{\textquoteright}institut Fourier}, volume = {51}, number = {6}, year = {2001}, doi = {10.5802/aif.1873}, zbl = {0983.57010}, language = {fr}, url = {http://archive.numdam.org/articles/10.5802/aif.1873/} }
TY - JOUR AU - Pitsch, Wolfgang TI - Une construction intrinsèque du cœur de l'invariant de Casson JO - Annales de l'Institut Fourier PY - 2001 SP - 1741 EP - 1761 VL - 51 IS - 6 PB - Association des Annales de l’institut Fourier UR - http://archive.numdam.org/articles/10.5802/aif.1873/ DO - 10.5802/aif.1873 LA - fr ID - AIF_2001__51_6_1741_0 ER -
%0 Journal Article %A Pitsch, Wolfgang %T Une construction intrinsèque du cœur de l'invariant de Casson %J Annales de l'Institut Fourier %D 2001 %P 1741-1761 %V 51 %N 6 %I Association des Annales de l’institut Fourier %U http://archive.numdam.org/articles/10.5802/aif.1873/ %R 10.5802/aif.1873 %G fr %F AIF_2001__51_6_1741_0
Pitsch, Wolfgang. Une construction intrinsèque du cœur de l'invariant de Casson. Annales de l'Institut Fourier, Tome 51 (2001) no. 6, pp. 1741-1761. doi : 10.5802/aif.1873. http://archive.numdam.org/articles/10.5802/aif.1873/
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