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/sci/ - Science & Math


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1167211 No.1167211 [Reply] [Original]

fucking projective special linear groups, how do they work?

>> No.1167220
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1167220

It's the quotient of the special linear group modulo the scalar matrices with determinant 1.

>> No.1167238
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1167238

Now, the scalar matrices with determinant 1 form the center of the SL(n, F). (F is any field.)
Can one construct a homomorphism such that the center is the kernel of that homomorphism?

>> No.1167269
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1167269

The homomorphism mapping a matrix A to the inner automorphism of the SL(n,F) induced by conjugation with A has as a kernel the center.

So the projective special linear group is isomorphic to the inner automorphisms of SL(n,F).

>> No.1167288
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1167288

/sci/ delivers

>> No.1167310
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1167310

>>1167269
*the kernel

Hm, but that still doesn't really tell us how the projective special linear groups look like.

>> No.1167331
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1167331

>>1167288
nope, /sci/ most certainly didn't deliver. It's just me, the OP, soliloquizing on this shit board (/sci/) within a shit board (4chan).

>> No.1167404
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1167404

archive.numdam.org/article/RSMUP_1986__76__207_0.pdf

How can you guys believe in projective linear groups if it's only a theory (a geuss ) ?

>> No.1167421
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1167421

www4.ncsu.edu/~loek/research/sln.pdf

projective special linear groups don't exist, prove me wrong.

>> No.1167437
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1167437

If projective special linear groups exist, then how come my penis smells like catnip?
checkmate.

>> No.1167454
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1167454

Perhaps I'm being to firm with you retards, let's make it a tad easier.
I'll rephrase my initial inquire, restating it as follows:

"fucking projective special linear groups over fields with characteristic 0, how do they work?"

It satisfies me to know that 99% of all people who see this thread won't even be able to tell what I'm talking about after reading >10 wikipedia articles.

>> No.1167468

>>1167454
It satisfies me to know that you did not make this thread to have a productive discussion, but to boast about your newfound knowledge.

>> No.1167473
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1167473

>>1167454
WAIT JUST A SECOND, why should characteristic 0 be easier? I mean with char 0 we don't have finite groups anymoar. Which displeases Harald Schammidt (he is a Norwegian rapper).

>> No.1167486
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1167486

>>1167468
the fact that you think I have any "knowledge" in the stuff I'm talking about clearly shows to anyone who isn't a 12 year old fucktard (like you), that you are in fact a 12 year old fucktard.

All I gave was some trivial facts. But you wouldn't notice that, haha.

>> No.1167498

nobody gives a shit that you just read about some mathematics you could never have come up with independently even given a million years.

>> No.1167502
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1167502

>>1167486
that post was made modulo grammar. And this one modulo humor.

>> No.1167514
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1167514

>>1167498
Alright, here we go. The fucktards are circling. Another idiot who thinks I have said anything nontrivial in this thread, haha, awesome.

I require more, don't stop.

>> No.1167575
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1167575

I suppose /sci/ is not ready for this yet.
You have a lot of growing up to do, people.

future <span class="math">\in[/spoiler] {shitstorm, 404}.

>> No.1167690
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1167690

>Prove God doesn't exist
>62 posts and 18 image replies omitted. Click Reply to view.

>> No.1167694
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1167694

you accidentally the whole projective line you say?

>> No.1167700
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1167700

>could you make dehydrated water?
>26 posts and 2 image replies omitted. Click Reply to view.

>> No.1167732
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1167732

HEY YOU GUYS LETS PLAY CHESS AND DISCUSS RELIGION.
I'LL MAKE THE FIRST MOVE:
1. d7
checkmate. oh, my shift key released, finally.

>> No.1167801
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1167801

Yes, what ABOUT niggers?

>> No.1167849
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1167849

projective special linear groups are just applied logic. Obviously philosophers are god tier.
discuss.

>> No.1167882
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1167882

hay OP, is the internet serious business?

cause you're a fucking retard

>> No.1167957

/sci/ is dead people

>> No.1167979

the butthurtening

>> No.1168049
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1168049

>>1167979
>>1167957
>>1167882
yall niggers posting in a projective special linear group thread.

>> No.1168107

i only know them in the context of mobius transformations

>> No.1168110

>>1167207
www.anomtalk.se but with n instead of m near the middle fd4ae4416ac5db310618f60961e5c890 34813

>> No.1168129
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1168129

but if, then how come?
atheists 1
buddhists 2

>> No.1168309
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1168309

That has never occurred to me. Carry on.

>> No.1168465
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1168465

Fooooootballlllll