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1.
We prove the following inclusion where WF* denotes the non‐quasianalytic Beurling or Roumieu wave front set, Ω is an open subset of $\mathbb {R}^n$, P is a linear partial differential operator with suitable ultradifferentiable coefficients, and Σ is the characteristic set of P. The proof relies on some techniques developed in the study of pseudodifferential operators in the Beurling setting. Some applications are also investigated. 相似文献
2.
Isamu Dôku 《Acta Appl Math》2000,63(1-3):101-117
Nonlinear equation with catalytic noise is considered. We discuss the existence of catalytic superprocess associated with the equation and derive the exponential moment formula. Moreover, we prove the large deviation principle for catalytic superprocesses. 相似文献