# conical neighborhood

Let $V$ be a real (or complex) topological vector space and $X$ a subset of $V$. A conical neighborhood of $X$ is a cone in $V$ which is a neighborhood of $X$.

In the theory of pseudodifferential operators and in microlocal analysis, we have to consider conical neighborhood of vectors located in some fiber of a vector bundle.

Title conical neighborhood ConicalNeighborhood 2013-03-22 15:19:33 2013-03-22 15:19:33 urelement (1799) urelement (1799) 7 urelement (1799) Definition msc 46A55 conic neighborhood conical neighborhood