Results 11 to 20 of about 2,364,715 (303)

Linking Geometry and Algebra in the School Mathematics Curriculum [PDF]

open access: yes, 2010
This chapter focuses on the linking of geometry and algebra in the teaching and learning of mathematics - and how, through such linking, the mathematics curriculum might be strengthened. Through reviewing the case of the school mathematics curriculum in England, together with examples of how the power of geometry can bring contemporary mathematics to ...
Jones, Keith
core   +3 more sources

Centerpoints: A Link between Optimization and Convex Geometry [PDF]

open access: yesSIAM Journal on Optimization, 2016
We introduce a concept that generalizes several different notions of a "centerpoint" in the literature. We develop an oracle-based algorithm for convex mixed-integer optimization based on centerpoints. Further, we show that algorithms based on centerpoints are "best possible" in a certain sense.
Amitabh Basu, Timm Oertel
openaire   +6 more sources

Rational Linking and Contact Geometry [PDF]

open access: yes, 2011
In the note we study Legendrian and transverse knots in rationally null-homologous knot types. In particular we generalize the standard definitions of self-linking number, Thurston-Bennequin invariant and rotation number. We then prove a version of Bennequin's inequality for these knots and classify precisely when the Bennequin bound is sharp for ...
Baker, Kenneth L., Etnyre, John B.
openaire   +2 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

Canonical triangulations of Dehn fillings [PDF]

open access: yes, 2010
Every cusped, finite-volume hyperbolic three-manifold has a canonical decomposition into ideal polyhedra. We study the canonical decomposition of the hyperbolic manifold obtained by filling some (but not all) of the cusps with solid tori: in a broad ...
Schleimer, Saul, Guéritaud, François
core   +1 more source

Inverse kinematic analysis for triple-octahedron variable-geometry truss manipulators [PDF]

open access: yes, 2001
In this paper, a new triple-octahedron variable-geometry truss manipulator is presented. Its inverse kinematic solutions in closed form are studied. An input-output displacement equation in one output variable is derived.
Xu, L. J.   +7 more
core   +1 more source

Central Trajectories [PDF]

open access: yes, 2017
An important task in trajectory analysis is clustering. The results of a clustering are often summarized by a single representative trajectory and an associated size of each cluster. We study the problem of computing a suitable representative of a set of
Staals, F.   +7 more
core   +1 more source

Investigation and analysis of the linear dimensions of the flexible manipulator section in the process of tilting [PDF]

open access: yesE3S Web of Conferences, 2023
A feature of the functioning of such a device is a change in the position of each of the sections. The study of the peculiarities of changing the position of the link is an important task.
Semenov Konstantin   +3 more
doaj   +1 more source

Leveraging the nonuniform PSO network model as a benchmark for performance evaluation in community detection and link prediction

open access: yesNew Journal of Physics, 2018
Advances in network geometry pointed out that structural properties observed in networks derived from real complex systems can emerge in the hyperbolic space (HS).
Muscoloni Alessandro   +1 more
doaj   +1 more source

Algebra and geometry of link homology

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

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