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Inventiones mathematicae

, Volume 78, Issue 1, pp 143–160 | Cite as

Fundamental solutions and geometry of the sum of squares of vector fields

  • Antonio Sánchez-Calle
Article

Keywords

Vector Field Fundamental Solution 
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Copyright information

© Springer-Verlag 1984

Authors and Affiliations

  • Antonio Sánchez-Calle
    • 1
  1. 1.Department of MathematicsMassachusetts Institute of TechnologyCambridgeUSA

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