Results 101 to 110 of about 49,024 (304)
Advanced Materials Interfaces, EarlyView.Epitaxial Cr(1+δ)Te2 thin films were synthesized via hybrid Pulsed Laser Deposition (PLD) that combined Molecular Beam Epitaxy (MBE) techniques with PLD. Control of the Cr intercalation, δ, enabled modulation of magnetic anisotropy, Curie temperature, and transport properties.
Pia Henning +3 more
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Journal of Algebra, 1995 The author has been motivated by the wish to formulate the results of \textit{B. Alpers} [J. Algebra 137, 44-55 (1991; Zbl 0727.11017)]\ on round quadratic forms for quadratic forms instead of for elements of the Witt ring. The goal of this paper is finding a classification of round quadratic forms.
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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
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ON SOME PROPERTIES OF UNBOUNDED BILINEAR FORMS ASSOCIATED WITH SKEW-SYMMETRIC L2(Ω)-MATRICES
Vìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Modelûvannâ, 2013 We study the bilinear forms on the space of measurable square-integrable functionswhich are generated by skew-symmetric matrices with unbounded coecients.We show that in the case when a skew-symmetric matrix contains L2-elements, the corresponding ...
P. I. Kogut
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, 2017 This chapter presents a few standard definitions and results about quadratic forms and polar spaces. It begins by defining a quadratic module and a quadratic space and proceeds by discussing a hyperbolic quadratic module and a hyperbolic quadratic space.
Holger P. Petersson +2 more
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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
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Embeddability of quadratic forms in Pfister forms
Indagationes Mathematicae, 2000 Let \(F\) be a field of characteristic not 2. An anisotropic quadratic form \(q\) over \(F\) is called \(m\)-embeddable if \(q\) is similar to a subform of an anisotropic \(m\)-fold Pfister form. Let \(m(q), m_{\text{ext}}(q)\), \(m_{ptr}(q)\) be the smallest integer \(m\) such that \(q\) is \(m\)-embeddable over \(F\), over an extension of \(F\), over
Izhboldin, O., Hoffmann, D.
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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
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Journal für die reine und angewandte Mathematik (Crelles Journal), 1984 Let \(u_ F(r)\) be the smallest integer such that every system of r quadratic forms in n variables, defined over a field F, has a nontrivial common zero if \(n>u_ F(r)\). Let \(u_ F(r)=\infty\) if no such integer exists. Then \(u_ F(r)\leq frac{1}{2}(r^ 2+r)u_ F(1)\) and there exist fields for which this bound is best possible when \(r=1,2,3\). If F is
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소수와 서로소인 제곱의 합으로 표현되는 이변수 이차형식
, 2019 학위논문 (박사)-- 서울대학교 대학원 : 자연과학대학 수리과학부, 2019. 2. 오병권.제곱의 합으로 표현되는 임의의 n변수 양의 정부호 이차형식이 소수 p로 나누어지지 않는 s개 이하의 제곱의 합으로 표현될 때, 이러한 성질을 만족하 는 s의 값 가운데 가장 작은 정수를 s_p(n)이라 정의한다. 이 논문에서 우리는 s_2(2) = 11, s_3(2) = 7, s_5(2) = 6, 그리고 임의의 홀수인 소수 p에 대하여, 5 ≤ s_p(2) ≤
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