Solving 3xy" - 4y' - xy = 0 with Frobenius

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SUMMARY

The discussion focuses on solving the differential equation 3xy" - 4y' - xy = 0 using the Frobenius method. The initial step involves substituting a power series for y, expressed as y = Σ(a_k * x^k). Participants emphasize the importance of calculating the derivatives and equating coefficients of equal powers to find the solution. This structured approach is essential for applying the Frobenius method effectively.

PREREQUISITES
  • Understanding of differential equations
  • Familiarity with power series expansions
  • Knowledge of the Frobenius method for solving differential equations
  • Basic calculus, including differentiation and series manipulation
NEXT STEPS
  • Study the Frobenius method in detail, focusing on its application to linear differential equations
  • Learn how to derive power series solutions for different types of differential equations
  • Explore examples of solving second-order differential equations using power series
  • Review techniques for equating coefficients in series expansions
USEFUL FOR

Mathematics students, educators, and researchers interested in advanced techniques for solving differential equations, particularly those utilizing the Frobenius method.

glitchy
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I'm really getting stuck at this and I'm trying to read on it but it's confusing.

I need just a start-up for this equation which is to be solved with the method of frobenius.

3xy" - 4y' - xy = 0

Just need a start.

Any help is appreciated.

Thank you
 
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Start by substituting a power series in x for y. y=sum(a_k*x^k). Do the derivatives and equate coefficients of equal powers. Go!
 
done, then
 

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