1991 | OriginalPaper | Buchkapitel
Count Riccati and the Early Days of the Riccati Equation
verfasst von : Sergio Bittanti
Erschienen in: The Riccati Equation
Verlag: Springer Berlin Heidelberg
Enthalten in: Professional Book Archive
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Towards the turn of the seventeenth century, when the baroque was giving way to the enlightenment, there lived in the Republic of Venice a gentleman, the father of nine children, by the name of Jacopo Franceso Riccati. On the cold New Year’s Eve of 1720, he wrote a letter to his friend Giovanni Rizzetti, where he proposed two new differential equations. In modern symbols, these equations can be written as follows: 1.1$$\dot x = \alpha {x^2} + \beta {t^m}$$1.2$$\dot x = \alpha {x^2} + \beta t + \gamma {t^2}$$ where m is a constant. This is probably the first document witnessing the early days of the Riccati Equation, an equation which was to become of paramount importance in the centuries to come.