Note on the polyhedral description of the Minkowski sum of two L-convex sets
Note on the polyhedral description of the Minkowski sum of two L-convex sets
复制标题
关于两个 L 凸集的 Minkowski 和的多面体描述的注记
DOI:
10.1007/s13160-022-00512-3
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发表时间:
2022
影响因子:
0.9
通讯作者:
Murota Kazuo
中科院分区:
文献类型:
--
作者:
Moriguchi Satoko;Murota Kazuo
L-convex sets are one of the most fundamental concepts in discrete convex analysis. Furthermore, the Minkowski sum of two L-convex sets, called L-convex sets, is an intriguing object that is closely related to polymatroid intersection. This paper reveals the polyhedral description of an L-convex set, together with the observation that the convex hull of an L-convex set is a box-TDI polyhedron. Two different proofs are given for the polyhedral description. The first is a structural short proof, relying on the conjugacy theorem in discrete convex analysis, and the second is a direct algebraic proof, based on Fourier–Motzkin elimination. The obtained results admit natural graph representations. Implications of the obtained results in discrete convex analysis are also discussed.
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DOI:
--
发表时间:
2012
期刊:
--
影响因子:
--
作者:
K. Murota;A. Shioura
通讯作者:
A. Shioura
DOI:
10.1007/s13160-020-00416-0
发表时间:
2020-01
影响因子:
0.9
作者:
A. Tamura;Kazuya Tsurumi
通讯作者:
A. Tamura;Kazuya Tsurumi
DOI:
10.1016/s0166-218x(01)00222-0
发表时间:
2001
期刊:
Discret. Appl. Math.
影响因子:
--
作者:
K. Murota;A. Shioura
通讯作者:
A. Shioura
DOI:
--
发表时间:
2019
期刊:
影响因子:
--
作者:
Akiyoshi Shioura
通讯作者:
Akiyoshi Shioura
影响因子:
5
作者:
Xin Chen;Menglong Li
通讯作者:
Xin Chen;Menglong Li