Results 51 to 60 of about 1,998,384 (219)
New variational and multisymplectic formulations of the Euler–Poincaré equation on the Virasoro–Bott group using the inverse map [PDF]
Proceedings of the Royal Society A, 2018 We derive a new variational principle, leading to a new momentum map and a new multisymplectic formulation for a family of Euler–Poincaré equations defined on the Virasoro–Bott group, by using the inverse map (also called ‘back-to-labels’ map).
Darryl D. Holm, T. Tyranowski
semanticscholar +1 more source
Advanced Science, EarlyView.A bioinspired piezoelectric sensor mimicking Pacinian corpuscles is developed to enable ultrasensitive and linear pressure sensing. A multilayer grooved architecture converts normal pressure into in‐plane strain, delivering high sensitivity, wide linear range, and efficient energy harvesting, enabling high‐fidelity wrist pulse monitoring and ...
Qi Yang +8 more
wiley +1 more source
Poincaré Plots in Analysis of Selected Biomedical Signals
Studies in Logic, Grammar and Rhetoric, 2013 Poincaré plot is a return map which can help perform graphical analysis of data. We can also fit an ellipse to the plot shape by determining descriptors SD1, SD2 and SD1/SD2 ratio to study the data quantitatively.
Golińska Agnieszka Kitlas
doaj +1 more source
Degree theory for 4‐dimensional asymptotically conical gradient expanding solitons
Communications on Pure and Applied Mathematics, EarlyView.Abstract We develop a new degree theory for 4‐dimensional, asymptotically conical gradient expanding solitons. Our theory implies the existence of gradient expanding solitons that are asymptotic to any given cone over S3$S^3$ with non‐negative scalar curvature. We also obtain a similar existence result for cones whose link is diffeomorphic to S3/Γ$S^3/\
Richard H. Bamler, Eric Chen
wiley +1 more source
Impulsive Ecological Control Of A Stage-Structured Pest Management System
Mathematical Biosciences and Engineering, 2005 The dynamics of a stage-structured pest management system isstudied by means of autonomous piecewise linear systems withimpulses governed by state feedback control.
Guirong Jiang, Qishao Lu, Linping Peng
doaj +1 more source
Twists, realizations and Hopf algebroid structure of kappa-deformed phase space
, 2014 The quantum phase space described by Heisenberg algebra possesses undeformed Hopf algebroid structure. The $\kappa$-deformed phase space with noncommutative coordinates is realized in terms of undeformed quantum phase space.
Juric, Tajron +2 more
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Health Care Science, EarlyView.Heart Rate Variability Estimation from Camera Videos ABSTRACT Background Studies have shown that heart rate variability (HRV) is a predictor of the prognosis of cardiovascular diseases. Contact heartbeat monitoring equipment is widely used, especially in hospitals, and benefits from the rapidity and accuracy of the detection of physiological health ...
Lan Lan +8 more
wiley +1 more source
$3$-dimensional Continued Fraction Algorithms Cheat Sheets [PDF]
, 2015 Multidimensional Continued Fraction Algorithms are generalizations of the Euclid algorithm and find iteratively the gcd of two or more numbers. They are defined as linear applications on some subcone of $\mathbb{R}^d$.
Labbé, Sébastien
core
An inverse mapping theorem for blow-Nash maps on singular spaces
, 2015 A semialgebraic map $f:X\to Y$ between two real algebraic sets is called blow-Nash if it can be made Nash (i.e. semialgebraic and real analytic) by composing with finitely many blowings-up with non-singular centers.
Campesato, Jean-Baptiste
core +3 more sources
2-Group Representations for Spin Foams [PDF]
, 2009 Just as 3d state sum models, including 3d quantum gravity, can be built using categories of group representations, "2-categories of 2-group representations" may provide interesting state sum models for 4d quantum topology, if not quantum gravity. Here we
Aristide Baratin +4 more
core +3 more sources