John Hempel

Available identifiers

zbMath Open hempel.johnMaRDI QIDQ193532

List of research outcomes

Publication	Date of Publication	Type
Some 3-manifold groups with the same finite quotients	2014-09-11	Paper
https://portal.mardi4nfdi.de/entity/Q2911755	2012-09-02	Paper
Positive Heegaard diagrams	2006-06-12	Paper
https://portal.mardi4nfdi.de/entity/Q4831130	2004-12-21	Paper
3-manifolds as viewed from the curve complex	2002-05-27	Paper
Positive diagrams for Seifert fibered spaces.	2002-01-01	Paper
https://portal.mardi4nfdi.de/entity/Q5289023	1993-08-18	Paper
Homology of Branched Coverings of 3-Manifolds	1993-01-17	Paper
The lattice of branched covers over the figure-eight knot	1990-01-01	Paper
Branched covers over strongly amphicheiral links	1990-01-01	Paper
One-relator surface groups	1990-01-01	Paper
Coverings of Dehn fillings of surface bundles. II	1987-01-01	Paper
Coverings of Dehn fillings of surface bundles	1986-01-01	Paper
https://portal.mardi4nfdi.de/entity/Q3691937	1985-01-01	Paper
https://portal.mardi4nfdi.de/entity/Q3730663	1985-01-01	Paper
Homology of coverings	1984-01-01	Paper
Traces, lengths, and simplicity for loops on surfaces	1984-01-01	Paper
Intersection calculus on surfaces with applications to 3-manifolds	1983-01-01	Paper
Orientation reversing involutions and the first Betti number for finite coverings of 3-manifolds	1982-01-01	Paper
https://portal.mardi4nfdi.de/entity/Q4114528	1976-01-01	Paper
https://portal.mardi4nfdi.de/entity/Q4061695	1975-01-01	Paper
Free Cyclic Actions on S 1 × S 1 × S 1	1975-01-01	Paper
Fundamental groups of 3-manifolds which are extensions	1972-01-01	Paper
Residual Finiteness of Surface Groups	1972-01-01	Paper
3-Manifolds Which Fiber Over a Surface	1972-01-01	Paper
https://portal.mardi4nfdi.de/entity/Q5613095	1971-01-01	Paper
Covering three-manifolds with open cells	1969-01-01	Paper
Free Surfaces in S 3	1969-01-01	Paper
Locally Nice Embeddings of Manifolds	1966-01-01	Paper
Closing a surface in \(E^3\)	1964-01-01	Paper
A Surface in S 3 is Tame if it Can be Deformed Into Each Complementary Domain	1964-01-01	Paper
A Simply Connected 3-Manifold is S 3 if it is the Sum of a Solid Torus and the Complement of a Torus Knot	1964-01-01	Paper

Research outcomes over time

Doctoral students

No records found.

Known relations from the MaRDI Knowledge Graph

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