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Coefficients of determinant polynomial are zero for higher order matrix?

Posted 9 years ago

I am solving a homogeneous system of linear equations of order 14n x 14n. I need to find out the values of one parameter for which determinant is zero. But after n=2, all the coefficient of the characteristic polynomial are becoming zero, which is unexpected. Elements of the matrix are integrals involving Bessel's and modified Bessel's function. Is there a way to resolve it?

POSTED BY: neelam choudhary
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POSTED BY: Daniel Lichtblau

Maybe.

That's about the best one can say absent serious detail, preferably in the form of Mathematica code. Note that such can be attached as a Mathematica notebook if too large for the post itself.

POSTED BY: Daniel Lichtblau

Code is large, I cant post here. But it works well for n=1,2 and gives good results.

POSTED BY: neelam choudhary

Dear Daniel, Code is attached herewith. I want to increase 'n' to find 'w' which is required. I kindly request you to please let me know the issue of code.

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POSTED BY: neelam choudhary

I will work on your suggestions. Thanks a lot.

POSTED BY: neelam choudhary
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