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Topic: Stone Cech
Replies: 49   Last Post: Mar 28, 2013 12:15 PM

 Messages: [ Previous | Next ]
 Butch Malahide Posts: 894 Registered: 6/29/05
Re: Stone Cech
Posted: Mar 20, 2013 3:20 PM

On Mar 20, 8:53 am, David C. Ullrich <ullr...@math.okstate.edu> wrote:
> On Tue, 19 Mar 2013 21:25:44 -0700 (PDT), Butch Malahide
>
>
>
>
>
> <fred.gal...@gmail.com> wrote:

> >On Mar 19, 8:49 pm, William Elliot <ma...@panix.com> wrote:
> >> On Tue, 19 Mar 2013, David Hartley wrote:
> >> > <ma...@panix.com> writes
> >> > > On Mon, 18 Mar 2013, David Hartley wrote:
>
> >> > > > > Perhaps you could illustrate with the five different one to four point
> >> > > > > point compactifications of two open end line segements.

>
> >> > > > (There are seven.)
>
> >> > > Five without homeomorphisms.
>
> >> > ||
> >> > |O
> >> > O O
> >> > |
> >> > 9
> >> > 8
> >> > O

>
> >> 1       8
> >> 2       0       00      6
> >> 3       01      1
> >> 4       11

>
> >> Ok, seven non-homeomophic finite Hausdorff compactications.
>
>
> Surely there's no simple formula for that?
>
> The "obvious" approach seems like starting with the number
> ofpartitions of 2n, which is already hopeless, and then
> somehow factoring out the ones that give homeomorphic
> compactifications... hopeless squared. Is there a better
> way, or are you just making trouble again or what?- Hide quoted text -

Just making trouble again.

Date Subject Author
3/14/13 William Elliot
3/14/13 fom
3/15/13 fom
3/16/13 William Elliot
3/15/13 David C. Ullrich
3/17/13 William Elliot
3/17/13 David C. Ullrich
3/17/13 fom
3/18/13 David C. Ullrich
3/18/13 fom
3/18/13 David Hartley
3/19/13 William Elliot
3/19/13 David Hartley
3/19/13 William Elliot
3/20/13 Butch Malahide
3/20/13 David C. Ullrich
3/20/13 Butch Malahide
3/20/13 Butch Malahide
3/21/13 quasi
3/21/13 quasi
3/21/13 quasi
3/21/13 quasi
3/21/13 Butch Malahide
3/21/13 quasi
3/22/13 Butch Malahide
3/22/13 Butch Malahide
3/22/13 Butch Malahide
3/22/13 quasi
3/22/13 David C. Ullrich
3/22/13 David C. Ullrich
3/22/13 Butch Malahide
3/23/13 Butch Malahide
3/23/13 David C. Ullrich
3/23/13 David C. Ullrich
3/23/13 Frederick Williams
3/23/13 David C. Ullrich
3/23/13 Frederick Williams
3/22/13 Butch Malahide
3/23/13 David C. Ullrich
3/22/13 Butch Malahide
3/23/13 quasi
3/23/13 Butch Malahide
3/23/13 Butch Malahide
3/24/13 quasi
3/24/13 Frederick Williams
3/24/13 quasi
3/25/13 Frederick Williams
3/28/13 Frederick Williams
3/25/13 quasi
3/19/13 David C. Ullrich