Foundations of Physics Letters

, Volume 3, Issue 5, pp 403–423 | Cite as

A guided tour of new tempered distributions

  • John Schmeelk


Laurent Schwartz, the principle architect of distribution theory, presented the impossibility of extending a form of multiplication to distribution theory. There have been many varieties of partial solutions to this problem. Some of the solutions contain heuristic computations done by physicists in quantum field theory. A recent strategy developed by J. Colombeau culminates with multiplication and integration theory for distributions. This paper develops this theory in the spirit of a sequence approach, much like fundamental sequences are to distributions. However, in the new tempered distribution theory the sequences can be noncountable. T. Todorov developed these techniques for new distributions. However, since so many applications require Fourier analysis, the new tempered distributions provide a natural setting for physics and signal analysis. The paper illustrates the product of two Dirac delta functionals,δ(x)δ(x). Other nonregular distributional products can also be computed in the same manner. The paper culminates with a new application of annihilation and creation operators in quantum field theory.

Key words

rapid-descent test functions tempered distributions multiplications of distributions new generalized functions 


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Copyright information

© Plenum Publishing Corporation 1990

Authors and Affiliations

  • John Schmeelk
    • 1
  1. 1.Department of Mathematical SciencesVirginia Commonwealth UniversityRichmondUSA

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