Approximation Theory and its Applications

, Volume 15, Issue 3, pp 66–80 | Cite as

The curl in seven dimensional space and its applications

  • Lizhong Peng
  • Lei Yang


In higher dimensional spacesR n(n>3) the usual curl does not have the properties as inR 3. In this paper, we established the natural concept of curl inR 7 via octonion O. We prove that there exists the curl inR n if and only if n=3,7. Some applications are presented, such as the new phenomenon of the differential forms inR 7 which is different from the ordinary de Rham cohomology and Hodge theory, grad-curl-div type Dirac operator inR 6, seven dimensional Maxwell equations and Navier-Stokes equations.


Cross Product Maxwell Equation Division Algebra Natural Concept Hadamard Matrix 
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Copyright information

© Springer 1999

Authors and Affiliations

  • Lizhong Peng
    • 1
  • Lei Yang
    • 1
  1. 1.Department of MathematicsPeking UniversityBeijingPRC

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