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The link concordance invariant from Lee homology
link concordance invariant Lee homology Geometric Topology
2011/9/19
Abstract: We use the knot homology of Khovanov and Lee to construct link concordance invariants generalizing the Rasmussen $s$-invariant of knots. The relevant invariant for a link is a filtration on ...
The structure of invariant tori in a 3D galactic potential
Chaos and Dynamical Systems Galactic Dynamics 4D surfaces of section
2010/12/16
We study in detail the structure of phase space in the neighborhood of stable periodic orbits in a rotating 3D potential of galactic type.We have used the color and rotation method to investigate the ...
The $\bar\mu$-invariant of Seifert fibered homology spheres and the Dirac operator
$\bar\mu$-invariant of Seifert fibered homology spheres Dirac operator
2010/12/8
We derive a formula for the ¯μ–invariant of a Seifert fibered homology sphere in terms of the –invariant of its Dirac operator. As a consequence, we obtain a vanishing result for the index of ce...
SU(5)-invariant decomposition of ten-dimensional Yang-Mills supersymmetry
SU(5)-invariant decomposition ten-dimensional Yang-Mills supersymmetry
2010/12/16
The N=1, d=10 superYang–Mills action is constructed in a twisted form, using SU(5) invariant decomposition of spinors in 10 dimensions. The action and its off-shell closed twisted scalar supersymmetry...