The uncertainty principle: A mathematical survey

  • Gerald B. Folland
  • Alladi Sitaram
Research Tutorial


We survey various mathematical aspects of the uncertainty principle, including Heisenberg’s inequality and its variants, local uncertainty inequalities, logarithmic uncertainty inequalities, results relating to Wigner distributions, qualitative uncertainty principles, theorems on approximate concentration, and decompositions of phase space.

Math Subject Classifications

Primary 42-02, 42B10, 26D15 Secondary 43A25, 43A30, 81Q10, 81S30, 94A12, 94A17 

Keywords and Phrases

uncertainty principle Fourier transform Heisenberg’s inequality logarithmic inequalities Wigner distribution Landau-Pollak-Slepian theory phase space 


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Copyright information

© CRC Press, Inc 1997

Authors and Affiliations

  • Gerald B. Folland
    • 1
  • Alladi Sitaram
    • 2
  1. 1.Department of MathematicsUniversity of WashingtonSeattle
  2. 2.Statistics and Mathematics DivisionIndian Statistical Institute, R. V. College Post OfficeBangaloreIndia

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