Results 121 to 130 of about 7,754 (304)
The hyperbolic metric and coverings of Riemann surfaces [PDF]
Pacific Journal of Mathematics, 1979 Suppose X and Y are Riemann surfaces which have the open unit ball as universal covering surface. Let dσx, dσγ be the hyperbolic metric on X, Y, respectively. Given any analytic function f:X->Y the principle of hyperbolic metric asserts that (f*{dσγ)ldσx)( p) 1 for each point peX where f*{dσγ) is the pull-back to X via / of the hyperbolic metric on Y.
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Observer‐Based Adaptive Event‐Triggered Tracking Control for Fuzzy TS Systems With Premise Mismatch
International Journal of Adaptive Control and Signal Processing, EarlyView.This paper presents an adaptive logistic event‐triggered observer‐based tracking controller for Takagi‐Sugeno fuzzy systems under constrained inputs and network delays. Leveraging a hybrid LMI and Secretary Bird Optimization approach, this strategy significantly minimizes communication overhead and computational burden while ensuring optimal reference ...
Oussama Djadane +3 more
wiley +1 more source
The space of metric structures on hyperbolic groups [PDF]
, 2022 We study the metric and topological properties of the space $\mathscr{D}(G)$ of left-invariant hyperbolic pseudometrics on the non-elementary hyperbolic group $G$ that are quasi-isometric to a word metric, up to rough similarity.
Oregón-Reyes, Eduardo
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Metric conformal structures and hyperbolic dimension [PDF]
Conformal Geometry and Dynamics of the American Mathematical Society, 2007 For any hyperbolic complex X X and a ∈ X a\in X we construct a visual metric d ˇ = d ˇ a \check {d}=\check {d}_a on
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Advanced Engineering Materials, EarlyView.Building machine‐readable vocabularies for materials science is slow, expert‐driven work. This study benchmarks 13 large language models on two of its first steps: finding candidate terms in engineering articles and deciding where they belong in a class hierarchy.
Thomas Bjarsch +3 more
wiley +1 more source
Packing Multidimensional Spheres in an Optimized Hyperbolic Container
MathematicsThe problem of packing multidimensional spheres in a container defined by a hyperbolic surface is introduced. The objective is to minimize the height of the hyperbolic container under non-overlapping and containment conditions for the spheres ...
Yuriy Stoyan +6 more
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The hyperbolicity constant of infinite circulant graphs
Open Mathematics, 2017 If X is a geodesic metric space and x1, x2, x3 ∈ X, a geodesic triangle T = {x1, x2, x3} is the union of the three geodesics [x1x2], [x2x3] and [x3x1] in X.
Rodríguez José M., Sigarreta José M.
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Advanced Engineering Materials, EarlyView.This study shows that superalloys used in aircraft engine disks become much more prone to deformation at high temperatures if they have been strained during manufacturing. This effect increases with the level of prior strain but eventually reaches a limit.
Fabio Machado Alves da Fonseca +9 more
wiley +1 more source
Asymptotically hyperbolic $3$-metric with Ricci flow foliation [PDF]
, 2019 There have been a number of successful constructions for asymptotically flat metrics with a certain background foliation. This talk will begin with introducing several results obtained by this foliation method.
Jang, Hyun Chul
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Advanced Engineering Materials, EarlyView.This study applies machine learning regression to predict chromium layer thickness in decorative trivalent chromium electroplating, using 441 experiments from laboratory‐scale (1L) and pilot‐scale (14L) setups. Tree‐based models, particularly CatBoost, outperformed linear regression by capturing nonlinear parameter interactions (R2$R^2$ up to 0.77 ...
Christoph Baumer +4 more
wiley +1 more source