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The aim of this note is to characterize all pairs of sufficiently smooth functions for which the mean value in the Cauchy mean value theorem is taken at a point which has a well-determined position in the interval. As an application of this result, a partial answer is given to a question posed by Sahoo and Riedel. 相似文献
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We derive quantitative bounds for eigenvalues of complex perturbations of the indefinite Laplacian on the real line. Our results substantially improve existing results even for real potentials. For -potentials, we obtain optimal spectral enclosures which accommodate also embedded eigenvalues, while our result for -potentials yield sharp spectral bounds on the imaginary parts of eigenvalues of the perturbed operator for all . The sharpness of the results are demonstrated by means of explicit examples. 相似文献
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Kavil Yasar N. Shaban Yasser A. Alelyani Saeed Saad Al-Farawati Radwan Orif Mohammad I. Ghandourah Mohammed A. Schmidt Mark Turki Adnan J. Zobidi Mousa 《Research on Chemical Intermediates》2020,46(1):755-768
Research on Chemical Intermediates - The effluents containing the discarded water from the textile industry are graded as one of the foremost pollutants in all industrial sectors. The wide... 相似文献
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