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## On meromorphic solutions of the Riccati differential equations

### Tom 99 / 2010

Annales Polonici Mathematici 99 (2010), 247-262 MSC: Primary 34A34; Secondary 34M05, 30D35. DOI: 10.4064/ap99-3-3

#### Streszczenie

We investigate the growth and Borel exceptional values of meromorphic solutions of the Riccati differential equation $$w'=a(z)+b(z)w+w^2,$$ where $a(z)$ and $b(z)$ are meromorphic functions. In particular, we correct a result of E. Hille [Ordinary Differential Equations in the Complex Domain, 1976] and get a precise estimate on the growth order of the transcendental meromorphic solution $w(z)$; and if at least one of $a(z)$ and $b(z)$ is non-constant, then we show that $w(z)$ has at most one Borel exceptional value. Furthermore, we construct numerous examples to illustrate our results.

#### Autorzy

• Ran Ran ZhangSchool of Mathematical Sciences
South China Normal University
510631 Guangzhou, People's Republic of China
e-mail
• Zong Xuan ChenSchool of Mathematical Sciences
South China Normal University
510631 Guangzhou, People's Republic of China
e-mail

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