𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Polyominoes of order 3 do not exist

✍ Scribed by I.N Stewart; A Wormstein

Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
391 KB
Volume
61
Category
Article
ISSN
0097-3165

No coin nor oath required. For personal study only.

πŸ“œ SIMILAR VOLUMES

Prevalence-free utility-respecting summa
Prevalence-free utility-respecting summary indices of diagnostic power do not exist
✍ JΓΈrgen Hilden πŸ“‚ Article πŸ“… 2000 πŸ› John Wiley and Sons 🌐 English βš– 95 KB πŸ‘ 2 views

One would like to have a ranking method for diagnostic tests that justi"ably makes no assumptions about the local &disease mix', that is, about the pre-test probabilities of the diagnostic alternatives. Assuming the simplest possible clinical context we therefore examine the following question: can

There exist Steiner triple systems of or
There exist Steiner triple systems of order 15 that do not occur in a perfect binary one-error-correcting code
✍ Patric R. J. Γ–stergΓ₯rd; Olli Pottonen πŸ“‚ Article πŸ“… 2007 πŸ› John Wiley and Sons 🌐 English βš– 74 KB πŸ‘ 1 views

## Abstract The codewords at distance three from a particular codeword of a perfect binary one‐error‐correcting code (of length 2^m^βˆ’1) form a Steiner triple system. It is a longstanding open problem whether every Steiner triple system of order 2^m^βˆ’1 occurs in a perfect code. It turns out that thi