TY - BOOK AU - Romanovski Valery G AU - Shafer Douglas S TI - Centre and cyclicity problems:computational algebra approach SN - 9780817647261 (pbk) U1 - B396, P9 TB PY - 2009/// CY - Boston PB - Birkhauser KW - Differential equations KW - Mathematics and differential equations KW - Polynomials KW - Mathematics N1 - Appendix 307- 312.; References 313- 322p.; Index 323-330p ER -