We consider the planar equation \(\dot{z}=\sum a_{k, l}(t) z^{k} \bar{z}^{l}\), where \(a_{k, l}\) is a \(T\)-periodic complex-valued continuous function, equal to 0 for almost all \(k, l \in \mathbb{N}\). We present sufficient conditions imposed on \(a_{k,}\), which guarantee the existence of its \
On polynomial sequences connected with differential equations
β Scribed by Walter Warwick Sawyer
- Publisher
- John Wiley and Sons
- Year
- 1953
- Tongue
- English
- Weight
- 752 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0025-584X
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