Questions tagged [pseudospectral]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
0 votes
0 answers

schrodinger eq time propagation with dissipation using split step operator

I am looking in ways to include energy dissipation while propagating a coherent wavepacket in a 1d TDSE. for example I use the split step method: exp[Δt(D+V)]≈exp[ΔtV/2]exp[ΔtD]exp[ΔtV/2], and ...
user avatar
  • 1
1 vote
1 answer

Spectral method in Dirichlet boundaries

I want to solve Navier-Stokes eq with Dirichlet boundaries using a pseudospectral method. All of the references I encountered used Chebychev transform to do this. But why can’t you use sine transform?
user avatar
1 vote
0 answers

Well-conditioned pseudospectral for computing eigenvalues to (partial) differential equations

I am working on writing a Chebyshev pseudospectral method (see for example "Chebsyhev and Fourier spectral methods" by John Boyd) to solve for the eigenvalues of differential equations of ...
user avatar