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author:

Chen, Zian (Chen, Zian.) [1] | Chen, Bin (Chen, Bin.) [2] | Tang, Zhongzheng (Tang, Zhongzheng.) [3] | Diao, Zhuo (Diao, Zhuo.) [4]

Indexed by:

EI Scopus SCIE

Abstract:

Fork >= 2, let H be a k-uniform connected hypergraph on n vertices and m edges. The transversal number tau (H) is the minimum number of vertices that intersect every edge. We prove the following inequality: tau (H) <= (k-1)m+1 /k. Furthermore, we characterize the extremal hypergraphs with equality holds. Based on the proofs, some combinatorial algorithms on the transversal number are designed.

Keyword:

Extremal hypergraph k-uniform Transversal

Community:

  • [ 1 ] [Chen, Zian]Fuzhou Univ, Ctr Discrete Math, Fuzhou 350003, Fujian, Peoples R China
  • [ 2 ] [Chen, Bin]Hefei Natl Lab, Hefei 230088, Anhui, Peoples R China
  • [ 3 ] [Tang, Zhongzheng]Beijing Univ Posts & Telecommun, Sch Sci, Beijing 100876, Peoples R China
  • [ 4 ] [Diao, Zhuo]Cent Univ Finance & Econ, Sch Stat & Math, Beijing 100081, Peoples R China

Reprint 's Address:

  • [Diao, Zhuo]Cent Univ Finance & Econ, Sch Stat & Math, Beijing 100081, Peoples R China;;

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Source :

JOURNAL OF COMBINATORIAL OPTIMIZATION

ISSN: 1382-6905

Year: 2023

Issue: 1

Volume: 45

0 . 9

JCR@2023

0 . 9 0 0

JCR@2023

ESI Discipline: MATHEMATICS;

ESI HC Threshold:13

JCR Journal Grade:3

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count: 2

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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