Results 21 to 30 of about 3,395 (238)
Polar cremona transformations and monodromy of polynomials [PDF]
Studia Scientiarum Mathematicarum Hungarica, 2010 Consider the gradient map associated to any non-constant homogeneous polynomial f ∈ ℂ[ x0 , ..., xn ] of degree d , defined by \documentclass{aastex} \usepackage{amsbsy} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{bm} \usepackage{mathrsfs} \usepackage{pifont} \usepackage{stmaryrd} \usepackage{textcomp} \usepackage{upgreek ...
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3D mixed finite elements for curved, flat piezoelectric structures
International Journal of Smart and Nano Materials, 2019 The Tangential-Displacement Normal-Normal-Stress (TDNNS) method is a finite element method that was originally introduced for elastic solids and later extended to piezoelectric materials.
Martin Meindlhumer, Astrid Pechstein
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Vertices and polarizations for homogeneous polynomials
Advances in Mathematics, 1980 In [9] we showed that the process of building a r*-frame as in [5] for an ideal J contained in a power series ring k[ [x, ,..., x,,]] over a characteristic zero field k can be related to the construction of a Morin-Mather frame as in [6] by the discussion of the concept of the polarization map.
Hipps, N. +2 more
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3D Pattern Synthesis of Time-Modulated Conformal Arrays with a Multiobjective Optimization Approach
International Journal of Antennas and Propagation, 2014 This paper addresses the synthesis of the three-dimensional (3D) radiation patterns of the time-modulated conformal arrays. Due to the nature of periodic time modulation, harmonic radiation patterns are generated at the multiples of the modulation ...
Wentao Li +3 more
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IEEE Access, 2018 Compact Polarimetry has gained significant importance in recent years among other earth observation missions due to its low power consumption, simple architecture, and larger swath width. For space-based SAR systems, these parameters are vital to monitor
Kiran Dasari, Anjaneyulu Lokam
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Inequalities concerning polar derivative of polynomials
Annales UMCS, Mathematica, 2011 In this paper we obtain certain results for the polar derivative of a polynomial \(p(z) = c_nz^n +\sum_{j=\mu}^n c_{n-j}z^{n-j}\), \(1\leq\mu\leq n\), having all its zeros on \(|z| = k\), \(k\leq 1\), which generalizes the results due to Dewan and Mir, Dewan and Hans.
Ahuja, Arty, Dewan, K. K., Hans, Sunil
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Predicting Atomic Charges in MOFs by Topological Charge Equilibration
Advanced Functional Materials, EarlyView.An atomic charge prediction method is presented that is able to accurately reproduce ab‐initio‐derived reference charges for a large number of metal–organic frameworks. Based on a topological charge equilibration scheme, static charges that fulfill overall neutrality are quickly generated.
Babak Farhadi Jahromi +2 more
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Nucleation‐Controlled Reconstruction of CuOx for Selective CO2 Electroreduction
Advanced Functional Materials, EarlyView.The ratio of oxygen vacancies (Ov) and exposed Cu2O (111)/(200) of CuOx precatalyst is modulated by nucleation control of Cu(OH)2 precursor. Low Ov ratio and high ratio of Cu2O (111)/(200) in slow‐nucleated CuOx reconstructs to high‐coordinated oxide‐derived copper (OD‐Cu) during electrochemical CO2 reduction reaction (CO2RR) and exhibits enhanced ...
Ying Ying Ch'ng +14 more
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Discretization of polynomial vector fields by polarization [PDF]
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2015 A novel integration method for quadratic vector fields was introduced by Kahan in 1993. Subsequently, it was shown that Kahan's method preserves a (modified) measure and energy when applied to quadratic Hamiltonian vector fields. Here we generalize Kahan's method to cubic resp.
Celledoni, Elena +4 more
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Advanced Materials, EarlyView.Magnetic doping of the topological insulator Bi2Te3 with erbium adatoms induces out‐of‐plane magnetism and breaks time‐reversal symmetry, opening a Dirac gap and driving a Fermi surface transition from hexagonal to star‐of‐David geometry. Microscopy, spectroscopy, and magnetic dichroism reveal atomically controlled magnetic interactions that tailor the
Beatriz Muñiz Cano +18 more
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