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Some new results on subset sums

✍ Scribed by Van H. Vu


Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
97 KB
Volume
124
Category
Article
ISSN
0022-314X

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✦ Synopsis


Let n be a large integer and A be a subset of [n] = {1, . . . , n}. The set S A is the collection of the subset sums of A. In this note, we discuss new results (and proofs) on few well-known problems concerning S A . In particular, we improve an estimate of Alon and ErdΕ‘s concerning monochromatic representations.


πŸ“œ SIMILAR VOLUMES


New analytical results in subset-sum pro
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✍ E. Lipkin πŸ“‚ Article πŸ“… 1993 πŸ› Elsevier Science 🌐 English βš– 727 KB

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In the well-known Subset Sum Problem, we are given positive integers a,, , a, and t and are to determine if some subset of the ai sums to t. We investigate the boundary between easy and hard variations of this problem. In particular, we consider the cases where the sequence 'A,~ .L' a,, \_\_\_ ,an i

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## Abstract A (__w__,__r__) __cover‐free family__ is a family of subsets of a finite set such that no intersection of __w__ members of the family is covered by a union of __r__ others. A (__w__,__r__) __superimposed code__ is the incidence matrix of such a family. Such a family also arises in crypt