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Proceedings of the American Mathematical Society
Proceedings of the American Mathematical Society
ISSN 1088-6826(online) ISSN 0002-9939(print)

 

On finiteness of the number of boundary slopes of immersed surfaces in 3-manifolds


Authors: Joel Hass, Shicheng Wang and Qing Zhou
Journal: Proc. Amer. Math. Soc. 130 (2002), 1851-1857
MSC (1991): Primary 57N10; Secondary 57M50, 53A10
Published electronically: October 23, 2001
MathSciNet review: 1887034
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Abstract: For any hyperbolic 3-manifold $M$ with totally geodesic boundary, there are finitely many boundary slopes for essential immersed surfaces of a given genus. There is a uniform bound for the number of such boundary slopes if the genus of $\partial M$ is bounded from above.


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Additional Information

Joel Hass
Affiliation: Department of Mathematics, University of California, Davis, California 95616
Email: hass@math.ucdavis.edu

Shicheng Wang
Affiliation: Department of Mathematics, Peking University, Beijing 100871, People’s Republic of China
Email: swang@sxx0.math.pku.edu.cn

Qing Zhou
Affiliation: Department of Mathematics, East China Normal University, Shanghai, 200062, People’s Republic of China
Email: qzhou@euler.math.ecnu.edu.cn

DOI: http://dx.doi.org/10.1090/S0002-9939-01-06262-1
PII: S 0002-9939(01)06262-1
Keywords: Boundary slopes, three-dimensional topology, essential surfaces
Received by editor(s): September 2, 1999
Received by editor(s) in revised form: December 28, 2000
Published electronically: October 23, 2001
Additional Notes: The first author was partially supported by NSF grant DMS-9704286.
The second and third authors were partially supported by MSTC and Outstanding Youth Fellowships of NSFC
Communicated by: Ronald A. Fintushel
Article copyright: © Copyright 2001 American Mathematical Society