Search All of the Math Forum:

Views expressed in these public forums are not endorsed by NCTM or The Math Forum.

Notice: We are no longer accepting new posts, but the forums will continue to be readable.

Topic: How WM is cheating - fat Cantor set measure
Replies: 3   Last Post: Jan 3, 2013 8:33 PM

 Messages: [ Previous | Next ]
 ross.finlayson@gmail.com Posts: 2,720 Registered: 2/15/09
Re: How WM is cheating - fat Cantor set measure
Posted: Dec 31, 2012 11:16 AM

On Dec 30, 12:17 am, fom <fomJ...@nyms.net> wrote:
> ...
> Unlike many other measures, Lebesgue
> measure has an invariance property
> that permits its product measures
> to be defined without the general
> theory of product measures.  To
> see why, consider the binary
> expansions on the interval
>
> 0<=y<1
>
> taking the eventually constant
> sequences ending in constant 0
> as the representation for rational
> numbers.  ...

Not all rationals as binary expansions end with zeros, only multiples
of inverse powers of two, for any finite string of zeros and ones
there are expansions of rationals that end with those repeating.

"Thus, the claim that the non-zero
measure of fat Cantor sets arises
from relation with an atomic
measurable space whose atoms are
not singletons has been verified. "

Having measurable, countable, atoms, comprising units of measure:
what would be their character as sets of reals?

Regards,

Ross Finlayson

Date Subject Author
12/30/12 fom
12/31/12 ross.finlayson@gmail.com
1/3/13 fom
1/3/13 fom