Elementary orbifold differential topology

Topology from the Differentiable Viewpoint.

Edgar H. Brown, John Milnor · American Mathematical Monthly · 1967 · 1.5K citations

Natural Sciences, Mathematics, Geometry +14

Topological Transformation Groups.

Fernando Haas, Dominique Mikell Montgomery, Leo Zippin · American Mathematical Monthly · 1956 · 1.1K citations

ON A GENERALIZATION OF THE NOTION OF MANIFOLD

Ichirō Satake · Proceedings of the National Academy of Sciences · 1956 · 579 citations · Full text

Natural Sciences, Mathematics, Algebra +7

The Gauss-Bonnet Theorem for V-manifolds.

Ichirō Satake · Journal of the Mathematical Society of Japan · 1957 · 438 citations · Full text

Natural Sciences, Mathematics, Descriptive Geometry +6

Orbifolds, Sheaves and Groupoids

Ieke Moerdijk, Dorette Pronk · K-Theory · 1997 · 177 citations

Natural Sciences, Astronomy, Geometry +7