collaborators

1 paper

math.AP2026

Hyperbolic Fourier series and the Klein-Gordon equation

H. Hedenmalm, A. Montes-Rodriguez

In an effort to extend classical Fourier theory, Hedenmalm and Montes-Rodr\'ıguez (2011) found that the function system \[ e_m(x)=e^{iπmx},\quad e_n^\dagger(x)=e_n(-1/x)=e^{-iπn…