Results 21 to 30 of about 4,686,287 (314)

The signature and cusp geometry of hyperbolic knots [PDF]

open access: yesGeometry & Topology, 2021
We introduce a new real-valued invariant called the natural slope of a hyperbolic knot in the 3-sphere, which is defined in terms of its cusp geometry.
A. Davies   +3 more
semanticscholar   +1 more source

Geometry of alternating links on surfaces

open access: yesTransactions of the American Mathematical Society, 2020
We consider links that are alternating on surfaces embedded in a compact 3-manifold. We show that under mild restrictions, the complement of the link decomposes into simpler pieces, generalising the polyhedral decomposition of alternating links of Menasco.
Joshua A. Howie   +2 more
openaire   +3 more sources

Practical challenges in data‐driven interpolation: Dealing with noise, enforcing stability, and computing realizations

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView., 2023
Summary In this contribution, we propose a detailed study of interpolation‐based data‐driven methods that are of relevance in the model reduction and also in the systems and control communities. The data are given by samples of the transfer function of the underlying (unknown) model, that is, we analyze frequency‐response data.
Quirin Aumann, Ion Victor Gosea
wiley   +1 more source

Algebra and geometry of link homology

open access: yes, 2021
49 ...
Gorsky, Eugene   +2 more
openaire   +2 more sources

Compact phase space, cosmological constant, discrete time [PDF]

open access: yes, 2015
We study the quantization of geometry in the presence of a cosmological constant, using a discretiza- tion with constant-curvature simplices. Phase space turns out to be compact and the Hilbert space finite dimensional for each link.
Rovelli, Carlo, Vidotto, Francesca
core   +3 more sources

Geometry of biperiodic alternating links

open access: yesJournal of the London Mathematical Society, 2018
A biperiodic alternating link has an alternating quotient link in the thickened torus. In this paper, we focus on semi-regular links, a class of biperiodic alternating links whose hyperbolic structure can be immediately determined from a corresponding Euclidean tiling. Consequently, we determine the exact volumes of semi-regular links.
Abhijit Champanerkar   +2 more
openaire   +4 more sources

Refilling meridians in a genus 2 handlebody complement [PDF]

open access: yes, 2008
Suppose a genus two handlebody is removed from a 3-manifold M and then a single meridian of the handlebody is restored. The result is a knot or link complement in M and it is natural to ask whether geometric properties of the link complement say ...
Scharlemann, Martin
core   +3 more sources

Vacuum Solutions of Classical Gravity on Cyclic Groups from Noncommutative Geometry [PDF]

open access: yes, 2001
Based on the observation that the moduli of a link variable on a cyclic group modify Connes' distance on this group, we construct several action functionals for this link variable within the framework of noncommutative geometry.
Dai, Jian, Song, Xing-Chang
core   +6 more sources

The size of triangulations supporting a given link [PDF]

open access: yes, 2000
Let T be a triangulation of S^3 containing a link L in its 1-skeleton. We give an explicit lower bound for the number of tetrahedra of T in terms of the bridge number of L.
Armentrout   +15 more
core   +5 more sources

Home - About - Disclaimer - Privacy