Dirac combs
Abstract
We consider tempered distributions given by linear combinations of delta functions placed at different points and whose Fourier transform is also a sum of the delta functions. We show that they can be characterized as finite superpositions of periodic structures.
- Publication:
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Letters in Mathematical Physics
- Pub Date:
- April 1989
- DOI:
- Bibcode:
- 1989LMaPh..17..191C
- Keywords:
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- Primary 42B10;
- secondary 44A15