New posts in eigenfunctions

physical meaning of laplace-beltrami eigenfunctions?

Finding Fourier cosine series of sine function

fourier-analysis fourier-series eigenfunctions

Why does the set of an hermitian operator's eigenfunctions spans the functions space

eigenvalues-eigenvectors operator-theory eigenfunctions

Sturm Liouville with periodic boundary conditions

ordinary-differential-equations periodic-functions eigenfunctions

Solving $u_t=4u_{xx}+\sin{(\pi x)}+\sin{(2\pi x)}$ using an eigenfunction expansion

partial-differential-equations eigenfunctions

Finding Eigenvalues of First Order ODEs with Periodic BC?

functional-analysis ordinary-differential-equations eigenvalues-eigenvectors mathematical-physics eigenfunctions

Intuitive understanding of Maximin Principle

optimization eigenvalues-eigenvectors spectral-theory eigenfunctions

Positivity of principal eigenvalue for $L\phi=-\triangle \phi + \nabla \cdot( u \phi )$

partial-differential-equations eigenfunctions

Can we construct Sturm Liouville problems from an orthogonal basis of functions?

How is the Laplace Transform a Change of basis?

linear-algebra eigenvalues-eigenvectors laplace-transform change-of-basis eigenfunctions

Does this generalized second order eigenproblem have exact solution?

ordinary-differential-equations quantum-mechanics eigenfunctions