Any analytical solutions to this second order nonlinear DE?

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Discussion Overview

The discussion centers on the existence of analytical solutions for the second order nonlinear differential equation given by ay''+bx^2y+cxy+dy=0, where a, b, c, and d are constants. Participants explore the methods for solving this equation, including the possibility of closed form solutions and the use of infinite series.

Discussion Character

  • Debate/contested, Technical explanation

Main Points Raised

  • One participant questions whether there are analytical solutions to the given differential equation and seeks guidance on solving it.
  • Another participant asserts that, in general, there are no closed form solutions and suggests that the standard approach involves using an infinite series.
  • A different participant points out that the equation is a linear ordinary differential equation (ODE), which may influence the methods of solution.
  • Another participant clarifies that the technical meaning of "analytic" refers to functions defined by power series, indicating that solutions may exist in that context.

Areas of Agreement / Disagreement

Participants express differing views on the nature of the solutions, with some suggesting that closed form solutions are unlikely while others propose that analytic solutions may be possible through power series. The discussion remains unresolved regarding the exact nature of the solutions.

Contextual Notes

The discussion does not clarify the assumptions underlying the classification of the differential equation or the definitions of "analytical" and "closed form" solutions, which may affect the conclusions drawn.

pivoxa15
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Are there any analytical solutions to:

ay''+bx^2y+cxy+dy=0

where a,b,c,d are constants and y(x)

If so how would you go about it? Is there a website that teaches you how to solve these?
 
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If by "analytical solutions" you mean "closed form solutions" then, in general no. The standard method of solution for such a function is to use an infinite series.
 
What you've written is a LINEAR ODE, BTW.
 
the usual technical meaning of the word "analytic" is a function defined by a power series, and in that sense , as Halls implied, the answer is yes.
 

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