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New further integrability cases for the Riccati equation

103   0   0.0 ( 0 )
 Added by Tiberiu Harko
 Publication date 2013
  fields Physics
and research's language is English




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New further integrability conditions of the Riccati equation $dy/dx=a(x)+b(x)y+c(x)y^{2}$ are presented. The first case corresponds to fixed functional forms of the coefficients $a(x)$ and $c(x)$ of the Riccati equation, and of the function $F(x)=a(x)+[f(x)-b^{2}(x)]/4c(x)$, where $f(x)$ is an arbitrary function. The second integrability case is obtained for the reduced Riccati equation with $b(x)equiv 0$. If the coefficients $a(x)$ and $c(x)$ satisfy the condition $pm dsqrt{f(x)/c(x)}/dx=a(x)+f(x)$, where $f(x)$ is an arbitrary function, then the general solution of the reduced Riccati equation can be obtained by quadratures. The applications of the integrability condition of the reduced Riccati equation for the integration of the Schrodinger and Navier-Stokes equations are briefly discussed.



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