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Nonexistence of stable currents
Annals of Global Analysis and Geometry, 1995In the present paper the author investigates the nonexistence of stable integral currents in a compact hypersurface with positive Ricci curvature in a Euclidean space \(\mathbb{R}^{m + 1}\). Furthermore, a vanishing theorem concerning the homology group is obtained.
Qing-Ming Cheng, Cheng Qing-Ming
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Non-Existence of Stable Currents in Hypersurfaces
Southeast Asian Bulletin of Mathematics, 2000Let \(M\) be an \(m\)-dimensional compact hypersurface in the Euclidean space. The author studies the non-existence of stable integral \(p\)-currents in \(M\). The method is due to \textit{H. B. Lawson} and \textit{J. Simons}, Ann. Math. (2) 98, 427-450 (1973; Zbl 0283.53049)]. Related results can also be found in the reviewer's paper [Colloq. Math. 73,
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Null Homology Groups and Stable Currents in Warped Product Submanifolds of Euclidean Spaces [PDF]
Symmetry, 2021 In this paper, we prove that, for compact warped product submanifolds Mn in an Euclidean space En+k, there are no stable p-currents, homology groups are vanishing, and M3 is homotopic to the Euclidean sphere S3 under various extrinsic restrictions ...
Akram Ali, Ali Alkhaldi, Yanlin Li
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A stable current-to-frequency convertor
Journal of Physics E: Scientific Instruments, 1972This note describes a current-to-frequency convertor which provides continuous integration of an analogue input signal to give a digital output suitable for input to a scaler. The extremely stable peak-point voltage of a unijunction transistor is utilized to give an output stability of less than 0.05% and a short-term equivalent voltage drift of less ...
J F Williams, B A Willis, C R Devlin
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Ultra Stable Semiconductor Laser Current Source
Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, 2006Life-test for high reliability laser pumps demands highly stable current sources. Telops has engineered a novel current source that meets stabilities of 200 ppm/1000 hr. This paper presents the design and assessment of performance.
Francoys Aubee +3 more
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Stable Angina Pectoris: Current Medical Treatment
Current Pharmaceutical Design, 2013Stable angina represents the main symptom of established coronary artery disease. In addition atherosclerosis is the common pathological substrate of chronic stable angina as well as acute coronary syndromes. The aim of stable angina management is the symptomatic relief and the secondary prevention.
Katerina, Siama +9 more
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Gravity currents and their interaction with stable layers
2021This thesis was scanned from the print manuscript for digital preservation and is copyright the author. Researchers can access this thesis by asking their local university, institution or public library to make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
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Stable current profile in a stellarator with shear
Nuclear Fusion, 1990The authors have studied the stability of helical modes in a current carrying stellarator, ignoring the curvature of the axis and plasma pressure. They show that it is possible to fully stabilize a current column with a given arbitrary current value against both ideal and tearing modes by superimposing an external stellarator rotational transform with ...
M.I. Mikhajlov, V.D. Shafranov
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