Improving proximity bounds using sparsity
We refer to the distance between optimal solutions of integer programs and their linear
relaxations as proximity. In 2018 Eisenbrand and Weismantel proved that proximity is …
relaxations as proximity. In 2018 Eisenbrand and Weismantel proved that proximity is …
Improving the Cook et al. proximity bound given integral valued constraints
M Celaya, S Kuhlmann, J Paat… - … Conference on Integer …, 2022 - Springer
Consider a linear program of the form max {c⊤ x: A x≤ b}, where A is an m× n integral
matrix. In 1986 Cook, Gerards, Schrijver, and Tardos proved that, given an optimal solution …
matrix. In 1986 Cook, Gerards, Schrijver, and Tardos proved that, given an optimal solution …
A colorful Steinitz Lemma with application to block-structured integer programs
T Oertel, J Paat, R Weismantel - Mathematical Programming, 2024 - Springer
The Steinitz constant in dimension d is the smallest value c (d) such that for any norm on R d
and for any finite zero-sum sequence in the unit ball, the sequence can be permuted such …
and for any finite zero-sum sequence in the unit ball, the sequence can be permuted such …
On -modular integer linear problems in the canonical form and equivalent problems
D Gribanov, I Shumilov, D Malyshev… - Journal of Global …, 2024 - Springer
Many papers in the field of integer linear programming (ILP, for short) are devoted to
problems of the type max {c⊤ x: A x= b, x∈ Z≥ 0 n}, where all the entries of A, b, c are …
problems of the type max {c⊤ x: A x= b, x∈ Z≥ 0 n}, where all the entries of A, b, c are …
The distributions of functions related to parametric integer optimization
T Oertel, J Paat, R Weismantel - SIAM Journal on Applied Algebra and …, 2020 - SIAM
We consider the asymptotic distribution of the integer program (IP) sparsity function, which
measures the minimal support of optimal IP solutions, and the IP to linear program (LP) …
measures the minimal support of optimal IP solutions, and the IP to linear program (LP) …
Zero-One Laws for Random Feasibility Problems
DJ Altschuler - arXiv preprint arXiv:2309.13133, 2023 - arxiv.org
We introduce a general random model of a combinatorial optimization problem with
geometric structure that encapsulates both linear programming and integer linear …
geometric structure that encapsulates both linear programming and integer linear …
Proximity and flatness bounds for linear integer optimization
M Celaya, S Kuhlmann, J Paat… - Mathematics of …, 2024 - pubsonline.informs.org
This paper deals with linear integer optimization. We develop a technique that can be
applied to provide improved upper bounds for two important questions in linear integer …
applied to provide improved upper bounds for two important questions in linear integer …
Distance-sparsity transference for vertices of corner polyhedra
We obtain a transference bound for vertices of corner polyhedra that connects two well-
established areas of research: proximity and sparsity of solutions to integer programs. In the …
established areas of research: proximity and sparsity of solutions to integer programs. In the …
On matrices over a polynomial ring with restricted subdeterminants
M Celaya, S Kuhlmann, R Weismantel - International Conference on …, 2024 - Springer
This paper introduces a framework to study discrete optimization problems which are
parametric in the following sense: their constraint matrices correspond to matrices over the …
parametric in the following sense: their constraint matrices correspond to matrices over the …
Sparsity and integrality gap transference bounds for integer programs
We obtain new transference bounds that connect two active areas of research: proximity and
sparsity of solutions to integer programs. Specifically, we study the additive integrality gap of …
sparsity of solutions to integer programs. Specifically, we study the additive integrality gap of …