Man pages matching name math::geometry::voronoi in section 3pm:

Math::Geometry::Voronoi.3pm.en	debian 10 / libmath-geometry-voronoi-perl
Math::Geometry::Voronoi.3pm.en	debian 11 / libmath-geometry-voronoi-perl
Math::Geometry::Voronoi.3pm.en	debian 12 / libmath-geometry-voronoi-perl