Results 41 to 50 of about 66,871 (307)
Unknotting the interactive effects of learning processes on cultural evolutionary dynamics
Evolutionary Human Sciences, 2019 Forms of non-random copying error provide sources of inherited variation yet their effects on cultural evolutionary dynamics are poorly understood. Focusing on variation in granny and reef knot forms, we present a mathematical model that specifies how ...
Lauren A. Scanlon +3 more
doaj +1 more source
CATEGORICAL GROUPS, KNOTS AND KNOTTED SURFACES [PDF]
Journal of Knot Theory and Its Ramifications, 2007 We define a knot invariant and a 2-knot invariant from any finite categorical group. We calculate an explicit example for the Spun Trefoil.
openaire +3 more sources
Knot complexity and the probability of random knotting [PDF]
Physical Review E, 2002 The probability of a random polygon (or a ring polymer) having a knot type $K$ should depend on the complexity of the knot $K$. Through computer simulation using knot invariants, we show that the knotting probability decreases exponentially with respect to knot complexity. Here we assume that some aspects of knot complexity are expressed by the minimal
Shimamura, Miyuki K., Deguchi, Tetsuo
openaire +3 more sources
Resonant Domain Wall Dynamics in a Three‐Dimensional Magnetic Nano Double Helix
Advanced Materials, EarlyView.3D magnetic nanostructures promise exciting possibilities for magnetization dynamics. However, experimental realizations remain scarce. In nanoprinted cobalt double helices, time‐resolved X‐ray microscopy reveals harmonic domain wall dynamics. Simulations identify the mode and additional higher‐frequency resonances, revealing a rich dynamic landscape ...
Pamela Morales‐Fernández +15 more
wiley +1 more source
nebogeo/coding-with-knots: publication version
, 2017 Coding with knots, Inca ...
dave griffiths
core +1 more source
V2 Data for: Interactions between two knots in nanochannel-confined DNA molecules
, 2021 MATLAB codes, figure data, DNA imagesWe study the interaction between knots in nanochannel-confined DNA molecules using a nanofluidic "knot factory" device for knot generation.
Ma, Zixue, Dorfman, Kevin D
core +1 more source
Advanced Materials, EarlyView.Flexible neutral Zn‐air batteries achieving a remarkable 3000‐cycle lifespan and withstanding 1000 bending cycles are reported. This performance is realized by employing a 3D physically cross‐linked neutral hydrogel electrolyte that integrates high adhesion, self‐healing, O2 permeability, and CO2 tolerance to resolve critical stability challenges ...
Zhenyu Sun +3 more
wiley +1 more source
Excitation of knotted vortex lines in matter waves
New Journal of Physics, 2016 We study the creation of knotted ultracold matter waves in Bose–Einstein condensates via coherent two-photon Raman transitions with a Λ level configuration.
F Maucher, S A Gardiner, I G Hughes
doaj +1 more source
Unknotting information from Heegaard Floer homology [PDF]
, 2008 We use Heegaard Floer homology to obtain bounds on unknotting numbers. This is a generalisation of Ozsváth and Szabó's obstruction to unknotting number one.
Owens, Brendan, Brendan Owens, Owens, B.
core +1 more source
Untwisting 3-strand torus knots [PDF]
, 2020 We prove that the signature bound for the topological 4‐genus of 3‐strand torus knots is sharp, using McCoy's twisting method. We also show that the bound is off by at most 1 for 4‐strand and 6‐strand torus knots, and improve the upper bound on the ...
Lewark, L. +6 more
core +1 more source