On Highly Factorable Numbers
β Scribed by Jun Kyo Kim
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- English
- Weight
- 287 KB
- Volume
- 72
- Category
- Article
- ISSN
- 0022-314X
No coin nor oath required. For personal study only.
β¦ Synopsis
For a positive integer n, let f (n) be the number of multiplicative partions of n. We say that a nutural number n is highly factorable if f (m)< f (n) for all m, 1 ma j then f (np j Γp i ) f (n). Using this fact, we prove the conjecture of Canfield, Erdo s, and Pormerance: for each fixed k, if n is a large highly factorable number then there are asymptotically exactly 1Γk(k+1) of the exponents of n which are equal to k. We also answer the questions posed by Canfield et al.: if n, n$ are consecutive highly factorable numbers, then does it follow n$Γn Γ 1 and f (n$)Γf (n) Γ 1?
π SIMILAR VOLUMES
Perlin, M., Arc consistency for factorable relations (Research Note), Artificial Intelligence 53 (1992) 329-342. An optimal arc consistency algorithm AC-4 was given by Mohr and Henderson [8]. AC-4 has cost O(ed2), and cost (nd 2) for scene labelling. Although their algorithm is indeed optimal, unde