منابع مشابه
An extended complete Chebyshev system of 3 Abelian integrals related to a non-algebraic Hamiltonian system
In this paper, we study the Chebyshev property of the 3-dimentional vector space $E =langle I_0, I_1, I_2rangle$, where $I_k(h)=int_{H=h}x^ky,dx$ and $H(x,y)=frac{1}{2}y^2+frac{1}{2}(e^{-2x}+1)-e^{-x}$ is a non-algebraic Hamiltonian function. Our main result asserts that $E$ is an extended complete Chebyshev space for $hin(0,frac{1}{2})$. To this end, we use the criterion and tools developed by...
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The editorial process of a scientific journal involves highly specialized skills and hard work of many con tributors, including editors and reviewers. These tasks require not only the intellectual competence of each but also hours of administrative work, evaluating manuscripts and maintaining the flow of publications in progress. The flow of the peer review process in ABO initiates through the...
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The present study aims at investigating the amount of exhaust gases emissions of a 4-cylinder gasoline-ignition engine. An experimental study of an ignition engine management system has been conducted for emissions optimization, using Winols specialized software. In order to achieve a steady state conditions in the experiments, the temperature of the water and engine oil before each test reache...
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ژورنال
عنوان ژورنال: Nature
سال: 1948
ISSN: 0028-0836,1476-4687
DOI: 10.1038/162457a0