Question on series solutions of diff equations

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SUMMARY

The discussion centers on the differential equation \((x-1)^2 y'' + \frac{1}{x} y' - 2y = 0\), where participants are tasked with identifying singular points and classifying them as regular or essential singularities. The key conclusion is that the existence of a series solution of the form \(y = \sum_{j=0}^{\infty} a_j x^{j+k}\) is guaranteed by the nature of the singular points identified. Understanding the classification of singularities is crucial for justifying the series solution approach.

PREREQUISITES
  • Familiarity with differential equations, specifically second-order linear differential equations.
  • Understanding of singular points and their classifications (regular vs. essential).
  • Knowledge of power series and their convergence properties.
  • Basic skills in mathematical notation, including subscripts and summation notation.
NEXT STEPS
  • Study the classification of singular points in differential equations.
  • Research the theory behind power series solutions for differential equations.
  • Learn about the Frobenius method for solving differential equations near singular points.
  • Explore examples of second-order linear differential equations with known singularities.
USEFUL FOR

Students and educators in mathematics, particularly those focusing on differential equations, as well as researchers seeking to deepen their understanding of series solutions and singularity analysis.

blueyellow

Homework Statement


consider the differential equation

(x-1) squared y''+(1/x)y'-2y=0
find all the singular points of the equation and determine whether they are regular or essential singularities.
hence, explain why a solution of the form y= sigma (from j=0 to infinity) a (subscript j) x (to the power of j+k) should exist


The Attempt at a Solution


i found all the singular points but i don't see how that's going to help me determine why a solution of that form exists. usually doesn't one just ASSUME that a solution of that form exists?
thanks in advance
 
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hey r people not answering my question cos they r as clueless as i am or cos i somehow annoyed you by not typing out the subscripts properly? i don't know how to do that
 

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