Jens Fischer

3 Questions 23 Answers 0 Followers

Questions related from Jens Fischer

Are there (beside the Gaussian and sech) other fixpoints of the Fourier transform within the space of Schwartz functions?

It is clear that the Gaussian is a fixpoint of the Fourier transform within the space of Schwartz functions S. Until recently I was convinced that this is propably the only fixpoint in S. But now...

01 January 2017 6,945 7 View

Where exactly arise powers of the Dirac delta in quantum mechanics?

The present day theory of generalized functions does not allow the existence of powers of the Dirac delta. However, this technical infeasibility might not reflect the mathematical "truth". It...

01 January 1970 6,948 4 View

Can continuous nowhere differentiable functions be convolved with a Gaussian?

It should make them infinitely smooth...

01 January 1970 4,689 4 View