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This tag is used if a reference is needed in a paper or textbook on a specific result.

10 votes
Accepted

"Résumé de cours" by Jacques Tits

I've randomly acquired from Tits just a few of his resumes: 1979-80 (Bruhat-Tits work), 1980-81 (Kac-Moody algebras and groups), 1990-91 (Galois cohomology of semisimple groups over global fields). …
Jim Humphreys's user avatar
13 votes

Weil's paper under a pseudonym on deforming singular varieties

I think what you refer to as a pseudonymous paper is actually an anonymous note Correspondence, by XXX in Italian(!), which Weil composed in his role as an editor of the American Journal of Mathematic …
Jim Humphreys's user avatar
0 votes

Clifford's Theorem with all its aspects in modern language, looking for a textbook

Probably the most recent textbook which treats this material in a "modern" way is Methods of Representation Theory I (Wiley Interscience, 1981) by Curtis and Reiner. Combined with its volume II, th …
Jim Humphreys's user avatar
5 votes

References request on the algebraic geometry of projective homogeneous spaces

Much (but not quite all) of what you want is written down clearly in the mostly equivalent language of algebraic groups and homogeneous spaces by Birger Iversen and Robert Fossum. I'll give the jour …
Jim Humphreys's user avatar
2 votes

Conjugacy classes in PSL(3,q) and PSU(3,q)

As Nick points out, the classes are well documented in the literature. An old paper by Frame and Simpson, with free online access here, is a convenient source. (This paper was in fact reviewed by …
Jim Humphreys's user avatar
1 vote

References for Lie superalgebras

The representation theory has been developed by a number of people, including Jon Brundan and Sasha Kleschchev at U. Oregon. Take a look at the publication list Brundan has (with PDF files) on his …
Jim Humphreys's user avatar
3 votes

The geometry of closure of orbit of Borel subgroup in G/B × G/B.

If $T$ is taken to be a maximal torus of $G$ lying in $B$, the question may be reformulated using the set-up in 1.1-1.2 of the fundamental paper: Representations of Reductive Groups Over Finite Fields …
Jim Humphreys's user avatar
8 votes

Is there a reference containing standard mathematical notations?

The question presupposes the existence of some standard letters and notations of mathematical objects, which I'm doubtful about in many research areas. My experience with subjects that have a long …
11 votes
Accepted

theorem of Borel and Tits

This is too long for a comment, but like others who have commented I don't expect to find anything like a "complete proof" of the Borel-Tits theorem written in English. Borel and Tits have each wri …
Jim Humphreys's user avatar
6 votes
Accepted

the relation between cohomology and Dynkin graphs of lie groups

Your question involves a complex (semi)simple Lie group, I guess, and its Dynkin diagram. The topology of Lie groups and their homogeneous spaces $G/P$ (such as Grassmannians) is an old and rich sub …
Jim Humphreys's user avatar
3 votes
Accepted

Restricted Lie algebras of low dimension

As far as I know this type of classification problem has attracted very limited attention over the years. That's probably due in part to lack of enough external motivation, coupled with the cautiona …
Jim Humphreys's user avatar
2 votes
Accepted

Primitive ideals of the universal enveloping algebras of affine Lie algebras

I'm not aware of any reasonable analogue of the nilpotent variety (or related theory of associated varieties) in this infinite dimensional setting. But you may get some inspiration from the work of …
Jim Humphreys's user avatar
8 votes
Accepted

Any local algebraic group is birationally equivalent to an algebraic group

The answer to your question is basically no. Given the vintage of Weil's paper, you can't expect his statement to occur in this form in later books or even lecture notes on algebraic groups. Weil w …
Jim Humphreys's user avatar
8 votes
Accepted

Commutator table for Chevalley group G_2

It would help to clarify the context of "Chevalley group" here, but over any field one gets uniform results by starting with a Chevalley basis for the associated complex Lie algebra. The commutation …
Jim Humphreys's user avatar
3 votes

Reference request for the number of Sylow p-subgroups

It's probably useful to compare the other questions recently asked here by Sara, which are sometimes stimulating but typically not well formulated or motivated: for example here. Like the other qu …
Jim Humphreys's user avatar

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