The point at which the three lines connecting the polygon vertices of perspective triangles (from a point) concur, sometimes also called the homology center, pole, or, in modern usage, the perspector.
Perspective Center
See also
Cevian Point, Paralogic Triangles, Perspective Triangles, Perspector, PerspectrixExplore with Wolfram|Alpha
References
Kimberling, C. "Encyclopedia of Triangle Centers Glossary." http://faculty.evansville.edu/ck6/encyclopedia/glossary.html.Referenced on Wolfram|Alpha
Perspective CenterCite this as:
Weisstein, Eric W. "Perspective Center." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/PerspectiveCenter.html