Titlebook: Integer Programming and Combinatorial Optimization; 21st International C Daniel Bienstock,Giacomo Zambelli Conference proceedings 2020 Spri

Confidential

Continuous Facility Location on Graphs,able whenever . is a unit fraction, and that the problem is NP-hard for all non unit fractions .. We also analyze the parametrized complexity with the solution size as parameter: The resulting problem is fixed parameter tractable for all ., and it is .[2]-hard for all ..

松鸡

Popular Branchings and Their Dual Certificates,oblem. When preferences are weak rankings, we use our characterization to formulate the . in the original space and also show that our algorithm can be modified to compute a branching with .. When preferences are strict rankings, we show that “approximately popular” branchings always exist.

Chromatic

Idealness of ,-wise Intersecting Families, and Seymour’s characterization of the binary matroids with the sums of circuits property. As further evidence for our conjecture, we also note that it follows from an unpublished conjecture of Seymour from 1975.

冒失

打击

Optimizing Sparsity over Lattices and Semigroups,utions to systems ., where ., . and . is either a general integer vector (lattice case) or a non-negative integer vector (semigroup case). In the lattice case and certain scenarios of the semigroup case, we give polynomial time algorithms for computing solutions with .-norm satisfying the obtained bounds.

相一致

Conference proceedings 2020 conference is a forum for researchers and practitioners working on various aspects of integer programming and combinatorial optimization. The aim is to present recent developments in theory, computation, and applications in these areas..

arbovirus

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