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

 Messages: [ Previous | Next ]
 David C. Ullrich Posts: 21,553 Registered: 12/6/04
Re: Stone Cech
Posted: Mar 23, 2013 1:44 PM

On Fri, 22 Mar 2013 19:47:42 -0700 (PDT), Butch Malahide
<fred.galvin@gmail.com> wrote:

>On Mar 22, 9:43 am, David C. Ullrich <ullr...@math.okstate.edu> wrote:
>>
>> Hey, you guys are making progress!
>> Now all we need is an f such that
>> f(2) = 7, f(3) = 21 or whatever it was,
>> and f(4) = 61. I doubt there's more than
>> one such f...

>
>There are many such f's. That's not the point.

Oh. Thanks for pointing that out, chuckle.

>The point is that
>knowing the values of f(n) up to n = 4 or 5 will be helpful in looking
>for the sequence in the literature, e.g., in the OEIS. I don't think
>computers will be terribly helpful. The rule of thumb for
>combinatorial problems used to be that, with a computer, you can do
>one more case than you can do by hand. With the more powerful
>computers of today, maybe that's changed to 2 or 3 more cases.

Heh. Didn't know about that rule of thumb, but it sounds plausible.

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