Results 21 to 30 of about 14,865,566 (335)
Superradiant Instability and Backreaction of Massive Vector Fields around Kerr Black Holes. [PDF]
Physical Review Letters, 2017 We study the growth and saturation of the superradiant instability of a complex, massive vector (Proca) field as it extracts energy and angular momentum from a spinning black hole, using numerical solutions of the full Einstein-Proca equations.
W. East, F. Pretorius
semanticscholar +1 more source
Classification of Lie Subalgebras up to an Inner Automorphism [PDF]
Journal of Algebraic Systems, 2014 In this paper, a useful classification of all Lie subalgebras of a given Lie algebraup to an inner automorphism is presented. This method can be regarded as animportant connection between differential geometry and algebra and has many applications in ...
Seyed Reza Hejazi
doaj +1 more source
Frontiers in Psychology, 2023 Multiple external representations (e.g., diagrams, equations) and their interpretations play a central role in science and science learning as research has shown that they can substantially facilitate the learning and understanding of science concepts ...
Larissa Hahn, Pascal Klein
doaj +1 more source
On the properties of forward and backward shifts of vector fields [PDF]
Proceedings of the Estonian Academy of Sciences, 2022 The paper investigates some properties of recently defined forward and backward shifts of vector fields. The main purpose of the paper is to show that the forward and backward shifts of vector fields commute with the Lie bracket operator and with some ...
Arvo Kaldmäe +4 more
doaj +1 more source
Variable Bitrate Neural Fields [PDF]
International Conference on Computer Graphics and Interactive Techniques, 2022 Neural approximations of scalar- and vector fields, such as signed distance functions and radiance fields, have emerged as accurate, high-quality representations.
Towaki Takikawa +6 more
semanticscholar +1 more source
PLoS ONE, 2009 We present a novel approach toward evolving artificial embryogenies, which omits the graph representation of gene regulatory networks and directly shapes the dynamics of a system, i.e., its phase space. We show the feasibility of the approach by evolving cellular differentiation, a basic feature of both biological and artificial development.
Steiner, Till +2 more
openaire +6 more sources
Lagrangian flows for vector fields with gradient given by a singular integral [PDF]
, 2013 We prove quantitative estimates on ows of ordinary di erential equations with vector field with gradient given by a singular integral of an L1 function.
Crippa, Gianluca, Bouchut, Francois
core +1 more source
Weaving Knotted Vector Fields with Tunable Helicity. [PDF]
Physical Review Letters, 2016 We present a general construction of divergence-free knotted vector fields from complex scalar fields, whose closed field lines encode many kinds of knots and links, including torus knots, their cables, the figure-8 knot, and its generalizations.
Hridesh Kedia +3 more
semanticscholar +1 more source
A Phase Field Model for Continuous Clustering on Vector Fields [PDF]
, 2001 A new method for the simplification of flow fields is presented. It is based on continuous clustering. A well-known physical clustering model, the Cahn Hilliard model, which describes phase separation, is modified to reflect the properties of the data to
Preusser, T +23 more
core +1 more source
Advances in Mathematics, 2000 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Feinsilver, Philip, Schott, René
openaire +2 more sources