Assertion: gamma ray's path | /r/CapableOf | end at point ∞
Facets:
value: on the riemann sphere
type: LOCATION
Source sentences:
text: Let C be a Hankel contour, meaning a path that begins and ends at the point ∞ on the Riemann sphere, whose unit tangent vector converges to −1 at the start of the path and to 1 at the end, which has winding number 1 around 0, and which does not cross [0, ∞).