𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A conjecture concerning the ranking of the sciences

✍ Scribed by Paul Humphreys

Book ID
111703749
Publisher
Springer Netherlands
Year
1990
Tongue
English
Weight
365 KB
Volume
9
Category
Article
ISSN
0167-7411

No coin nor oath required. For personal study only.

πŸ“œ SIMILAR VOLUMES

A Conjecture Concerning the Spectrum of
A Conjecture Concerning the Spectrum of a Sentence
✍ Christopher J. Ash πŸ“‚ Article πŸ“… 1994 πŸ› John Wiley and Sons 🌐 English βš– 268 KB

## Abstract We give a plausible‐sounding conjecture involving the number of __n__‐equivalence classes of structures of size __m__ which would imply that the complement of a spectrum is also a spectrum. Mathematics Subject Classification: 03B10, 03D15, 68Q15.

A counterexample to the rank-coloring co
A counterexample to the rank-coloring conjecture
✍ N. Alon; P. D. Seymour πŸ“‚ Article πŸ“… 1989 πŸ› John Wiley and Sons 🌐 English βš– 140 KB

It has been conjectured by C. van Nuffelen that the chromatic number of any graph with at least one edge does not exceed the rank of its adjacency matrix. We give a counterexample, with chromatic number 32 and with an adjacency matrix of rank 29.