It is proved that a planar graph G without five cycles is three degenerate, hence, four choosable, and it is also edge-(Delta(G)+1)-choosable. (C) 2002 Elsevier Science Ltd. All rights reserved.
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Nanjing Normal Univ, Sch Math & Comp Sci, Nanjing 210097, Peoples R China
Huaiyin Teachers Coll, Dept Math, Huaian 223001, Peoples R ChinaNanjing Normal Univ, Sch Math & Comp Sci, Nanjing 210097, Peoples R China
Zhang, Haihui
Sun, Zhiren
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Nanjing Normal Univ, Sch Math & Comp Sci, Nanjing 210097, Peoples R ChinaNanjing Normal Univ, Sch Math & Comp Sci, Nanjing 210097, Peoples R China
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Zhejiang Normal Univ, Coll Math Phys & Informat Engn, Jinhua 321004, Peoples R ChinaZhejiang Normal Univ, Coll Math Phys & Informat Engn, Jinhua 321004, Peoples R China
Wang, Yingqian
Xu, Lingji
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Zhejiang Normal Univ, Coll Math Phys & Informat Engn, Jinhua 321004, Peoples R ChinaZhejiang Normal Univ, Coll Math Phys & Informat Engn, Jinhua 321004, Peoples R China
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Hebei Normal Univ Sci & Technol, Dept Math & Phys, Qinhuangdao 066004, Peoples R ChinaHebei Normal Univ Sci & Technol, Dept Math & Phys, Qinhuangdao 066004, Peoples R China
Zheng, Guoping
Shen, Yufa
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Hebei Normal Univ Sci & Technol, Dept Math & Phys, Qinhuangdao 066004, Peoples R ChinaHebei Normal Univ Sci & Technol, Dept Math & Phys, Qinhuangdao 066004, Peoples R China
Shen, Yufa
Wang, Jinran
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Hebei Normal Univ Sci & Technol, Dept Math & Phys, Qinhuangdao 066004, Peoples R ChinaHebei Normal Univ Sci & Technol, Dept Math & Phys, Qinhuangdao 066004, Peoples R China
Wang, Jinran
Gao, Mingjing
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Hebei Normal Univ Sci & Technol, Dept Math & Phys, Qinhuangdao 066004, Peoples R ChinaHebei Normal Univ Sci & Technol, Dept Math & Phys, Qinhuangdao 066004, Peoples R China
Gao, Mingjing
PROCEEDINGS OF THE EIGHTH INTERNATIONAL CONFERENCE ON INFORMATION AND MANAGEMENT SCIENCES,
2009,
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