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1.
36 p, 475.6 KB Primitive geodesic lengths and (almost) arithmetic progressions / Lafont, Jean François (Ohio State University (Estats Units d'Amèrica). Department of Mathematics) ; McReynolds, D. B. (Purdue University)
In this article we investigate when the set of primitive geodesic lengths on a Riemannian manifold have arbitrarily long arithmetic progressions. We prove that in the space of negatively curved metrics, a metric having such arithmetic progressions is quite rare. [...]
2019 - 10.5565/PUBLMAT6311906
Publicacions matemàtiques, Vol. 63 Núm. 1 (2019) , p. 183-218 (Articles)  
2.
11 p, 135.6 KB A note on strong Jordan separation / Lafont, Jean François (Ohio State University (Estats Units d'Amèrica). Department of Mathematics)
We establish a strengthening of Jordan separation, to the setting of maps f : X --> Sn+1, where X is not necessarily a manifold, and f is not necessarily injective.
2009 - 10.5565/PUBLMAT_53209_11
Publicacions matemàtiques, V. 53 n. 2 (2009) p. 515-525  

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2 Lafont, Jean François
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