Frobenius Equation 1: Almost there

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SUMMARY

The discussion focuses on solving the Frobenius equation, specifically the case where the roots of the indicial equation differ by an integer. The user has successfully derived the first solution, y1(x), using the larger root and is now attempting to find the second solution, y2(x), which involves a logarithmic term and a series expansion. The user seeks guidance on determining the coefficients dn and the constant k in the expression for y2(x).

PREREQUISITES
  • Understanding of Frobenius method for solving differential equations
  • Knowledge of indicial equations and their roots
  • Familiarity with series solutions and logarithmic terms in differential equations
  • Basic skills in manipulating algebraic expressions and series summations
NEXT STEPS
  • Research the Frobenius method for finding second solutions to differential equations
  • Study the properties of indicial equations and their implications for solution behavior
  • Learn techniques for determining coefficients in series expansions
  • Explore examples of differential equations with integer-differing roots
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Students and researchers in mathematics, particularly those studying differential equations and the Frobenius method, as well as educators looking for examples of solving complex equations.

Saladsamurai
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Homework Statement


Hi :smile: I think I am making some good progress on this one, but I am unsure of what the next step is? Can someone give a nudge in the right direction?

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Any thoughts on this one? It is the Frobenius case where the roots of the indicial equation differ by an integer. I have used the larger root to find y1(x) and now I am
seeking y2(x) = k*y1(x)*ln(x) + Σdnxn+s1 where s1 is the smaller root that I found. I have to find the dn's and I also have that 'k' to deal with.
 

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