Proximity bounds for random integer programs


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Date

2023-02

Publication Type

Journal Article

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yes

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Abstract

We study proximity bounds within a natural model of random integer programs of the type max c(inverted perpendicular) x : Ax = b, x is an element of Z(>= 0), where A is an element of Z(mxn) is of rank m, b is an element of Z(m) and c is an element of Z(n). In particular, we seek bounds for proximity in terms of the parameter Delta( A), which is the square root of the determinant of the Gram matrix AA(inverted perpendicular) of A. We prove that, up to constants depending on n and m, the proximity is "generally" bounded by Delta(A)(1/(n-m)), which is significantly better than the best deterministic bounds which are, again up to dimension constants, linear in Delta( A).

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published

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Volume

197 (2)

Pages / Article No.

1201 - 1219

Publisher

Springer

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03873 - Weismantel, Robert / Weismantel, Robert check_circle

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