Paramétrix du problème de Cauchy pour un système faiblement hyperbolique à caractéristiques multiples
Perturbations singulières et noyaux de Poisson pour les opérateurs frontières homogènes
Properties of some integrals related to partial differential equations of order higher than two
We construct fundamental solutions of some partial differential equations of order higher than two and examine properties of these solutions and of some related integrals. The results will be used in our next paper concerning boundary-value problems for these equations.