On the validity of Huygens' principle for second order partial differential equations with four independent variables. Part I : derivation of necessary conditions
Huygens' principle
Addendum à «R. G. McLenaghan : on the validity of Huygens' principle for second order partial differential equations with four independent variables. I»
On the validity of Huygens' principle for second order partial differential equations with four independent variables. II. A sixth necessary condition
An explicit determination of the Petrov type D spacetimes on which Weyl's neutrino equation and Maxwell's equations satisfy Huygens' principle
Nonexistence of Petrov type III space-times on which Weyl's neutrino equation or Maxwell's equations satisfy Huygens' principle
An explicit determination of the space-times on which the conformally invariant scalar wave equation satisfies Huygens' principle. — Part II : Petrov type D space-times
An explicit determination of the non-self-adjoint wave equations on curved space-time that satisfy Huygens' principle. Part I : Petrov type N background space-times
An explicit determination of the Petrov type N space-times on which the conformally invariant scalar wave equation satisfies Huygens' principle
An explicit determination of the space-times on which the conformally invariant scalar wave equation satisfies Huygens' principle. Part III : Petrov type III space-times
Complete solution of Hadamard's problem for the scalar wave equation on Petrov type III space-times
Huygens' principle for the non-self-adjoint scalar wave equation on Petrov type III space-times
Consequences of the validity of Huygens' principle for the conformally invariant scalar wave equation, Weyl's neutrino equation and Maxwell's equations on Petrov type II space-times
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