Motivation?: Lie algebra and algebraic group Cohomology












9












$begingroup$


This is just an apriori question to get a motivational heuristic idea:



If an algebraic group G (more generally, G an affine group scheme), is connected over an algebraically closed base-field k. Then are there relationships between its rational cohomology and the cohomology of its lie algebra?



In short, what information does each give about G (if these differ)?



What articles written on the subject?










share|cite|improve this question











$endgroup$












  • $begingroup$
    Have you had a look in Jantzen's book on algebraic groups? I recall it covering the basics and giving some good references.
    $endgroup$
    – Tobias Kildetoft
    Jan 19 at 15:09
















9












$begingroup$


This is just an apriori question to get a motivational heuristic idea:



If an algebraic group G (more generally, G an affine group scheme), is connected over an algebraically closed base-field k. Then are there relationships between its rational cohomology and the cohomology of its lie algebra?



In short, what information does each give about G (if these differ)?



What articles written on the subject?










share|cite|improve this question











$endgroup$












  • $begingroup$
    Have you had a look in Jantzen's book on algebraic groups? I recall it covering the basics and giving some good references.
    $endgroup$
    – Tobias Kildetoft
    Jan 19 at 15:09














9












9








9


2



$begingroup$


This is just an apriori question to get a motivational heuristic idea:



If an algebraic group G (more generally, G an affine group scheme), is connected over an algebraically closed base-field k. Then are there relationships between its rational cohomology and the cohomology of its lie algebra?



In short, what information does each give about G (if these differ)?



What articles written on the subject?










share|cite|improve this question











$endgroup$




This is just an apriori question to get a motivational heuristic idea:



If an algebraic group G (more generally, G an affine group scheme), is connected over an algebraically closed base-field k. Then are there relationships between its rational cohomology and the cohomology of its lie algebra?



In short, what information does each give about G (if these differ)?



What articles written on the subject?







algebraic-geometry lie-algebras homology-cohomology algebraic-groups group-schemes






share|cite|improve this question















share|cite|improve this question













share|cite|improve this question




share|cite|improve this question








edited Jan 19 at 12:50







AIM_BLB

















asked Sep 9 '13 at 4:11









AIM_BLBAIM_BLB

2,5122819




2,5122819












  • $begingroup$
    Have you had a look in Jantzen's book on algebraic groups? I recall it covering the basics and giving some good references.
    $endgroup$
    – Tobias Kildetoft
    Jan 19 at 15:09


















  • $begingroup$
    Have you had a look in Jantzen's book on algebraic groups? I recall it covering the basics and giving some good references.
    $endgroup$
    – Tobias Kildetoft
    Jan 19 at 15:09
















$begingroup$
Have you had a look in Jantzen's book on algebraic groups? I recall it covering the basics and giving some good references.
$endgroup$
– Tobias Kildetoft
Jan 19 at 15:09




$begingroup$
Have you had a look in Jantzen's book on algebraic groups? I recall it covering the basics and giving some good references.
$endgroup$
– Tobias Kildetoft
Jan 19 at 15:09










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