The existence and growth of meromorphic solutions f (z) for some q-difference equations are studied, and some estimates for the exponent of convergence of poles of Delta(q)f, Delta(2)(q)f, Delta(q)f/f, and Delta(2)(q)f/f are also obtained. Our theorems are improvements and extensions of the previous results.
机构:
Univ Eastern Finland, Dept Math & Phys, POB 111, FI-80101 Joensuu, FinlandUniv Eastern Finland, Dept Math & Phys, POB 111, FI-80101 Joensuu, Finland
Korhonen, Risto
Wen, Zhi-Tao
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机构:
Taiyuan Univ Technol, Dept Math, Taiyuan 030024, Peoples R ChinaUniv Eastern Finland, Dept Math & Phys, POB 111, FI-80101 Joensuu, Finland
机构:
Beihang Univ, LMIB, Beijing 100191, Peoples R China
Sch Math & Syst Sci, Beijing 100191, Peoples R ChinaBeihang Univ, LMIB, Beijing 100191, Peoples R China
Zhang, Jilong
Yang, Lianzhong
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机构:
Shandong Univ, Sch Math, Jinan 250100, Shandong, Peoples R ChinaBeihang Univ, LMIB, Beijing 100191, Peoples R China
机构:
Hangzhou Normal Univ, Sch Math, Hangzhou 311121, Zhejiang, Peoples R ChinaHangzhou Normal Univ, Sch Math, Hangzhou 311121, Zhejiang, Peoples R China
Cao, Jian
Zhou, Hong-Li
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Hangzhou Normal Univ, Sch Math, Hangzhou 311121, Zhejiang, Peoples R ChinaHangzhou Normal Univ, Sch Math, Hangzhou 311121, Zhejiang, Peoples R China
Zhou, Hong-Li
Arjika, Sama
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机构:
Univ Agadez, Dept Math & Informat, POB 199, Agadez, Niger
Univ Abomey Calavi, Int Chair Math Phys & Applicat ICMPA UNESCO Chair, Post Box 072,Cotonou 50, Godomey, BeninHangzhou Normal Univ, Sch Math, Hangzhou 311121, Zhejiang, Peoples R China