3 problems

Let $P$ be a homogeneous elliptic polynomial on $\mathbb R^n$ of order $m>1$, and define … Here $\mathcal S(\mathbb R^n)$ denotes the Schwartz space, and an operator is non-injecti…

Let $x\in R^n$ and $t\in R^r$, let $\Omega\subseteq R^r$ be open, and consider distribution solutions of the functional equation (1.1) satisfying assumptions A-1 through A-5. Let…

Let $M$ be a generically embedded $CR$ manifold, and let $p_0\in M$. Consider all germs at $p_0$ of $CR$ distributions on $M$, together with their $\mathcal{C}^{\infty}$ wave front…