Deltas, extended odd holes and their blockers

Abdi Ahmad; Lee Dabeen

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Deltas, extended odd holes and their blockers

机译：deltas，延伸奇怪的洞及其阻挡者

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摘要

Let C be a clutter over ground set V where no element is contained in every member. We prove that if there is a w is an element of R-+(V) such that every member has weight greater than half the weight of V, then there must be a delta or the blocker of an extended odd hole minor. The proof of this result relies on a tool developed for finding delta or extended odd hole minors. (C) 2018 Elsevier Inc. All rights reserved.

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《Journal of Combinatorial Theory, Series B》 |2019年第2019期|共11页
作者
Abdi Ahmad; Lee Dabeen;
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正文语种 eng
中图分类代数、数论、组合理论;
关键词
Clutters; Blockers; Width-length inequality; Clutter minors; Odd holes; Degenerate projective planes;

机译：博伦特;阻止者;宽度长度不等式;杂乱的成本;奇怪的洞;退化投射飞机;

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1. Fan-Delta, Braid Delta and the Classification of Delta Systems [J] . W.E.Galloway 地质学报：英文版 . 1991,第004期
2. Deltas, extended odd holes and their blockers [J] . Abdi Ahmad, Lee Dabeen Journal of Combinatorial Theory, Series B . 2019,第期

机译：deltas，延伸奇怪的洞及其阻挡者
3. Devils Hole, Nevada, delta O-18 record extended to the mid-Holocene [J] . Winograd IJ, Landwehr JM, Coplen TB, Quaternary Research: An Interdisciplinary Journal . 2006,第2期

机译：内华达州的恶魔洞，三角洲O-18记录扩展到全新世中期
4. Organic light-emitting devices with a hole-blocking layer inserted between the hole-injection layer and hole-transporting layer [J] . Y. Divayana, B. J. Chen, X. W. Sun, Applied Physics Letters . 2006,第8期

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5. Smallest Odd Holes in Claw-Free Graphs (Extended Abstract) [C] . Shimon Shrem, Michal Stern, Martin Charles Golumbic Graph-theoretic concepts in computer science . 2009

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6. THE 2-BLOCKS AND DECOMPOSITION NUMBERS OF SP(4,Q), Q ODD (GROUPS; MODULAR). [D] . WHITE, DONALD LEE. 1987

机译：SP（4，Q）的2块和分解数，Q奇数（组；模数）。
7. Ultrasound-guided continuous femoral nerve block: a randomized trial on the influence of femoral nerve catheter orifice configuration (six-hole versus end-hole) on post-operative analgesia after total knee arthroplasty [O] . Alessandra Novello-Siegenthaler, Mehdi Hamdani, Irène Iselin-Chaves, 2018

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8. Deltas, extended odd holes and their blockers [O] . Ahmad Abdi, Dabeen Lee 2019

机译：deltas，延伸奇怪的孔及其阻挡者

Deltas, extended odd holes and their blockers

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