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










0






active

oldest

votes











Your Answer





StackExchange.ifUsing("editor", function () {
return StackExchange.using("mathjaxEditing", function () {
StackExchange.MarkdownEditor.creationCallbacks.add(function (editor, postfix) {
StackExchange.mathjaxEditing.prepareWmdForMathJax(editor, postfix, [["$", "$"], ["\\(","\\)"]]);
});
});
}, "mathjax-editing");

StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "69"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});

function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
noCode: true, onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});


}
});














draft saved

draft discarded


















StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f488050%2fmotivation-lie-algebra-and-algebraic-group-cohomology%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown

























0






active

oldest

votes








0






active

oldest

votes









active

oldest

votes






active

oldest

votes
















draft saved

draft discarded




















































Thanks for contributing an answer to Mathematics Stack Exchange!


  • Please be sure to answer the question. Provide details and share your research!

But avoid



  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.


Use MathJax to format equations. MathJax reference.


To learn more, see our tips on writing great answers.




draft saved


draft discarded














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f488050%2fmotivation-lie-algebra-and-algebraic-group-cohomology%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown





















































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown

































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown







Popular posts from this blog

'app-layout' is not a known element: how to share Component with different Modules

android studio warns about leanback feature tag usage required on manifest while using Unity exported app?

WPF add header to Image with URL pettitions [duplicate]