Linking design problems and modular solutions
نویسندگان
چکیده
منابع مشابه
Design Solutions for Modular Satellite Architectures
The cost-effective access to space envisaged by ESA would open a wide range of new opportunities and markets, but is still many years ahead. There is still a lack of devices, circuits, systems which make possible to develop satellites, ground stations and related services at costs compatible with the budget of academic institutions and small and medium enterprises (SMEs). As soon as the develop...
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متن کاملModular Cocycles and Linking Numbers
It is known that the 3-manifold SL(2,Z)\ SL(2,R) is diffeomorphic to the complement of the trefoil knot in S. E. Ghys showed that the linking number of this trefoil knot with a modular knot is given by the Rademacher symbol, which is a homogenization of the classical Dedekind symbol. The Dedekind symbol arose historically in the transformation formula of the logarithm of Dedekind’s eta function...
متن کاملLinking Numbers and Modular Cocycles
It is known that the 3-manifold SL(2,Z)\ SL(2,R) is diffeomorhic to the complement of the trefoil knot in S3. As is shown by E. Ghys the linking number of the trefoil with a modular knot associated to a hyperbolic conjugacy is related to the classical Dedekind symbol. These symbols arose historically in the transformation property of the logarithm of Dedekind’s eta function. In this paper we st...
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§1. In this note we examine some questions about closed geodesics on the modular surface X which are suggested by the spectacular pictures from Ghys’ talk [G] as well as his paper with Leys [G-L]. The discussion below follows closely my letter to Mozzochi [Sa1] and as is done there we will only outline the proofs of the main results. Detailed proofs of the delicate estimates that are needed wil...
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ژورنال
عنوان ژورنال: International Journal of Product Development
سال: 2019
ISSN: 1477-9056,1741-8178
DOI: 10.1504/ijpd.2019.098396