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On the complex oscillation for a class of homogeneous linear differential equations

Published online by Cambridge University Press:  20 January 2009

Gao Shi-An
Affiliation:
Department of Mathematics, South China Normal University, Guangzhou, 510631, People's Republic of China
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Abstract

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Using a combined dominant condition, we obtain general results concerning the complex oscillation for a class of homogeneous linear differential equations w(k) + + … + A1w′ + (A0 + A)w = 0 with k ≥ 2, which has been investigated by many authors. In particular, we discover that there exists a unique case that possesses k linearly independent zero-free solutions for these equations, and we resolve an open problem and simultaneously answer a question of Bank.

Type
Research Article
Copyright
Copyright © Edinburgh Mathematical Society 2000

References

1.Bank, S., On the frequency of complex zeros of solutions of certain differential equations, Kodai Math. J. 15 (1992), 165184.CrossRefGoogle Scholar
2.Bank, S., Frank, G. and Laine, I., Über die Nullstellen von Lösungen linearer Differentialgleichungen, Math. Z. 183 (1983), 355364.CrossRefGoogle Scholar
3.Bank, S. and Laine, I., On the oscillation theory of f″ + Af = 0 where A is entire, Trans. Am. Math Soc. 273 (1982), 351363.Google Scholar
4.Bank, S. and Laine, I., On the zeros of meromorphic solutions of second order linear differential equations, comment, Math. Helv. 58 (1983), 656677.CrossRefGoogle Scholar
5.Bank, S., Laine, I. and Langley, J., On the frequency of zeros of solutions of second order linear differential equations, Results Math. 10 (1986), 824.CrossRefGoogle Scholar
6.Bank, S., Laine, I. and Langley, J., Oscillation results for solutions of linear differential equations in the complex domain, Results Math. 16 (1989), 315.CrossRefGoogle Scholar
7.Bank, S. and Langley, J., On the oscillation of solutions of certain linear differential equations in the complex domain, Proc. Edinb. Math. Soc. 30 (1987), 455469.CrossRefGoogle Scholar
8.Bank, S. and Langley, J., On the zeros of the solutions of the equation w (k) + (Re p + Q)w = 0, Kodai Math. J. 13 (1990), 298309.CrossRefGoogle Scholar
9.Shi-An, Gao, Some results on the complex oscillation theory of periodic second order linear differential equations, Kexue Tongbao 13 (1988), 10641068.Google Scholar
10.Shi-An, Gao, A further result on the complex oscillation theory of periodic second order linear differential equations, Proc. Edinb. Math. Soc. 33 (1990), 143158.Google Scholar
11.Hayman, W., Meromorphic functions (Clarendon, Oxford, 1964).Google Scholar
12.Langley, J., On complex oscillation and a problem of Ozawa, Kodai Math. J. 9 (1986), 430439.CrossRefGoogle Scholar
13.Lo, Yang, The value distribution theory and its new researches (in Chinese) (Science Press, Peking, 1982).Google Scholar