Results 41 to 50 of about 4,579 (296)
Lorentzian Approximations and Gauss–Bonnet Theorem for E1,1 with the Second Lorentzian Metric
Journal of Mathematics, 2022 In this paper, we consider the Lorentzian approximations of rigid motions of the Minkowski plane EL21,1. By using the method of Lorentzian approximations, we define the notions of the intrinsic curvature for regular curves, the intrinsic geodesic ...
Haiming Liu, Xiawei Chen
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The Nirenberg problem of prescribed Gauss curvature on $S^2$ [PDF]
Commentarii Mathematici Helvetici, 2021 We introduce a new perspective on the classical Nirenberg problem of understanding the possible Gauss curvatures of metrics on S^{2} conformal to the round metric.
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The isoperimetric problem in complete annuli of revolution with increasing Gauss curvature
, 2008 In this work we describe the isoperimetric regions in complete symmetric annuli of revolution with Gauss curvature non-decreasing from the shortest parallel. This description allows us to complete the classification of isoperimetric regions in quadrics
Cañete Martín, Antonio Jesús +1 more
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The shape derivative of the Gauss curvature
Revista de la Unión Matemática Argentina, 2018 نقدم مراجعة للنتائج حول مشتقات الشكل لوظائف الشكل المتدرج والمتجه، ونوسع النتائج من Dogan و Nochetto [ESAIM Math.Model.Numer.Anal.46 (2012)، رقم 1، 59-79] إلى طاقات سطحية أكثر عمومية. في هذه المقالة، يعتبر Dogan و Nochetto الطاقات السطحية المعرفة على أنها متكاملة على أسطح الوظائف التي يمكن أن تعتمد على الموضع والوحدة الطبيعية ومتوسط انحناء السطح.
Aníbal Chicco-Ruiz +2 more
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Historical Foundation and Practical Guideline for Ferroelectric Switching Kinetic Studies
Advanced Functional Materials, EarlyView.The P and U pulses in the conventional PUND measurements are not identical because of the interplay between switching current and the measurement circuit components. This circuit effect can lead to a shift in polarization transients and misinterpreted physics in the switching kinetics.
Yi Liang, Pat Kezer, John T. Heron
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Holographic p-wave superfluid in Gauss–Bonnet gravity
Physics Letters B, 2017 We construct the holographic p-wave superfluid in Gauss–Bonnet gravity via a Maxwell complex vector field model and investigate the effect of the curvature correction on the superfluid phase transition in the probe limit.
Shancheng Liu, Qiyuan Pan, Jiliang Jing
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Minimal surfaces with constant Gauss curvature
, 1972 Minimal surfaces with constant Gauss curvature in real space forms are studied.
Bang-yen Chen
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Ultrasmall High‐Entropy Materials: Nanoscale Effects, Synthesis, and Mechanistic Insights
Advanced Functional Materials, EarlyView.This review article focuses on sub‐10 nm high‐entropy materials that combine nanoscale design with complex compositions for next‐generation applications. ABSTRACT Ultrasmall high‐entropy nanomaterials (USHENMs, <10 nm) merge multicomponent chemistry with size‐dependent effects, forming a distinct class of materials with unprecedented properties.
Yueyue He +5 more
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Advanced Materials Technologies, EarlyView.The study considers the use of polymer/dielectric‐based multilayers piezoelectric Energy Harvesters (EH) to produce an output voltage and current, by exploiting the mechanical energy provided by human organs movements. In particular, the heart motion is considered from the kinematic viewpoint, and a multiphysics theoretical model is developed to assess
Hamdi Ezzin +5 more
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Special Curves in Engineering. Surfaces Generated by the Logarithmic Spiral
Modelling in Civil Environmental Engineering, 2022 The logarithmic spiral is one of the most known curves with applications in engineering. We consider product of the logarithmic spiral with a real line and tensor product of two logarithmic spirals and investigate their minimality or flatness.
Broscăţeanu Ștefan Cezar
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