Andr'e Froehly

collaborators

2 papers

math.AP2019

The fundamental solution of a class of ultra-hyperbolic operators on Pseudo $H$ -type groups

Wolfram Bauer, André Froehly, Irina Markina

Pseudo $H$ -type Lie groups $G_{r, s}$ of signature $(r, s)$ are defined via a module action of the Clifford algebra $C ℓ_{r, s}$ on a vector space $V ≅ R^{2 n}$ . They fo…

math.SP2017

Spectral asymptotics for eigenvalues and resonances in the presence of a change of boundary conditions

André Froehly

We consider a general second-order elliptic differential operator on a domain with a cylindrical end. We impose Dirichlet boundary conditions on the boundary with the exception of…

The fundamental solution of a class of ultra-hyperbolic operators on Pseudo H-type groups

Spectral asymptotics for eigenvalues and resonances in the presence of a change of boundary conditions

The fundamental solution of a class of ultra-hyperbolic operators on Pseudo $H$ -type groups