Answer to a 150-Year-Old Math Conundrum Brings More Mystery

Sun, 28 Jun 2015 12:39:38 +1000

Andrew Pam <xanni [at] glasswings.com.au>

Andrew Pam
<http://www.wired.com/2015/06/answer-150-year-old-math-conundrum-brings-mystery/>

"Yet for more than 150 years after Kirkman circulated his schoolgirl
problem, the most fundamental question in the field remained unanswered:
Do such puzzles usually have solutions? Kirkman’s puzzle is a prototype
for a more general problem: If you have n schoolgirls, can you create
groups of size k such that each smaller set of size t appears in just
one of the larger groups?"

Significant progress on an interesting area of maths.
Via Lauren Weinstein.

Share and enjoy,
                *** Xanni ***
--
mailto:xanni@xanadu.net                   Andrew Pam
http://www.xanadu.com.au/                 Chief Scientist, Xanadu
http://www.glasswings.com.au/             Partner, Glass Wings
http://www.sericyb.com.au/                Manager, Serious Cybernetics

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