Re: Aut H / Inn H

From: Robin Chapman <rjc@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
Date: Fri, 13 May 2005 12:22:41 +0100

Li Yi top-posted:

> Yes, but what about Inn H?

Should I reply here?

So, work out which rotations come from inner automorpisms!

> Robin Chapman wrote:
>
>> I have posted several times this way of considering Aut(H).
>> Consider a cube. Label its faces with i, j, k, -i, -j, -k
>> with i opposite -i etc. Then each rotation of the cube
>> gives rise to an automorphism of H and vice versa.

or here?

So, work out which rotations come from inner automorpisms!

--
Robin Chapman, www.maths.ex.ac.uk/~rjc/rjc.html
"Elegance is an algorithm"
Iain M. Banks, _The Algebraist_
.

Follow-Ups:
- Re: Aut H / Inn H
  - From: Dave Rusin
- Re: Aut H / Inn H
  - From: Li Yi

References:
- Aut H / Inn H
  - From: Li Yi
- Re: Aut H / Inn H
  - From: Robin Chapman
- Re: Aut H / Inn H
  - From: Li Yi

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Relevant Pages

Re: Aut H / Inn H
... but what about Inn H? ... work out which rotations come from inner automorpisms! ... >Robin Chapman, www.maths.ex.ac.uk/~rjc/rjc.html ...
(sci.math)
Re: Aut H / Inn H
... I find that sigma_1 and sigma_fix the cube ... work out which rotations come from inner automorpisms! ... >> Robin Chapman wrote: ...
(sci.math)
Re: Aut H / Inn H
... sigma_1 and sigma_fix all faces of the cube. ... Each induces a nontrivial rotation of the cube, ... work out which rotations come from inner automorpisms! ... Robin Chapman, www.maths.ex.ac.uk/~rjc/rjc.html ...
(sci.math)