Results 121 to 130 of about 2,516,410 (332)
Quadratic Forms over a ∈ Local Field
, 2017 This chapter presents various results about quadratic forms over a field complete with respect to a discrete valuation. The discussion is based on the assumption that K is a field of arbitrary characteristic which is complete with respect to a discrete ...
Holger P. Petersson +2 more
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Advanced Optical Materials, EarlyView.Large Faraday rotation at room temperature is observed in thin films of discotic copper (Cu2+: 3d9) and vanadyl (VO2+: 3d1) enaminoketone complexes. The large Verdet constant originates from a high density of paramagnetic centers, metal‐ligand p−d hybridization and π orbitals involved in optical transitions (identified by DFT calculations), as well as ...
Karolina Łempicka‐Mirek +8 more
wiley +1 more source
Dynamic Analysis of a Simple Cournot Duopoly Model Based on a Computed Cost
Discrete Dynamics in Nature and SocietyThe paper is organized to study some mathematical properties and dynamics of a simple Cournot duopoly game based on a computed quadratic cost. The time evolution of this game is described by a two-dimensional noninvertible discrete time map using the ...
S. S. Askar, Ahmad M. Alshamrani
doaj +1 more source
, 2014 In this paper we prove that a multiplicative quadratic map between a unital ring $K$ and a field $L$ is induced by a homomorphism from $K$ into $L$ or a composition algebra over $L$. Especially we show that if $K$ is a field, then every multiplicative quadratic map is the product of two field homomorphisms.
openaire +2 more sources
Advanced Optical Materials, EarlyView.Negatively charged boron vacancy defects in hexagonal boron nitride promise near‐surface quantum sensing, but their internal spin transition rates are only partly understood. This work directly measures the defect's singlet‐state lifetime, 15(3) ns, using a nanosecond rise‐time dual‐pulse photoluminescence‐recovery method, and shows that high laser ...
Richard A. Escalante +11 more
wiley +1 more source
Nicolai maps for super Yang–Mills on the light cone
Physics Letters BWe construct Nicolai maps for supersymmetric Yang–Mills theory in four and ten spacetime dimensions in the light-cone gauge, where the elimination of non-propagating degrees of freedom causes nonlocal and four-fermi interactions in the Lagrangian.
Olaf Lechtenfeld
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Effect of forest on sediment yield in North China
International Soil and Water Conservation Research, 2013 Forest-sediment relationship is a hot and important issue in Ecohydrology studies. China has implemented many large-scale reforestation programmes in the last decades to address the growing soil erosion and desertification.
Yu Xinxiao Prof. +3 more
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Properties of quadratic maps in a Banach space
Mathematical Notes of the Academy of Sciences of the USSR, 1991 A quadratic mapping of Banach space into \(\mathbb R^ n\times \mathbb R^ n\) is \(Q(x)=A(x,x)\), where \(A: X\times X\to \mathbb R^ n\) and \(A\) is symmetric \(A(x_ 1,x_ 2)=A(x_ 2,x_ 1)\). Some topological and geometrical properties of \(H=\{x\in X, Q(x)\in C\}\), where \(C\) is a closed convex cone in \(\mathbb R^ n\), are considered.
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Sierpinski curve Julia sets for quadratic rational maps [PDF]
, 2014 We investigate under which dynamical conditions the Julia set of a quadratic rational map is a Sierpiński ...
Garijo Real, Antonio +11 more
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Hard‐Magnetic Soft Millirobots in Underactuated Systems
Advanced Robotics Research, EarlyView.This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang +4 more
wiley +1 more source