Recent content by rajb245
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Graduate Solving linear differential equations by factoring
As a side note, I believe what you propose is basically the jordan canonical form of a constant coefficient linear system.- rajb245
- Post #10
- Forum: Differential Equations
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Graduate Solving linear differential equations by factoring
The Laplace transform technique is an established technique that is related to the characteristic equation method, is systematic, and can handle inhomogenous equations naturally without having to guess the form of the particular solution. It does not use undetermined coefficients or variation...- rajb245
- Post #9
- Forum: Differential Equations
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Graduate PDE : Can not solve Helmholtz equation
You basically got it. Your equation (7) is setting a constant P equal to a Fourier cosine series. The lowest order term in such a series is a constant, and you even correctly identified the value c_0=2P; if you take half that, this IS your \bar C_0 value. Working that back to your original...- rajb245
- Post #3
- Forum: Differential Equations