A positive integer m is said to be a practical number if every integer n, with 1 n \_(m), is a sum of distinct positive divisors of m. In this note we prove two conjectures of Margenstern: (i) every even positive integer is a sum of two practical numbers; (ii) there exist infinitely many practical
โฆ LIBER โฆ
A conjecture about two-dimensional hydrodynamics
โ Scribed by P. Gillis; P. Resibois
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- English
- Weight
- 109 KB
- Volume
- 63
- Category
- Article
- ISSN
- 0375-9601
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