Articles with "non positive" as a keyword



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The Uniqueness of Knieper Measure on Non-compact Rank 1 Manifolds of Non-positive Curvature

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Published in 2021 at "Acta Mathematica Sinica, English Series"

DOI: 10.1007/s10114-021-0465-8

Abstract: We study the Knieper measures of the geodesic flows on non-compact rank 1 manifolds of non-positive curvature. We construct the Busemann density on the ideal boundary, and prove that if there is a Knieper measure… read more here.

Keywords: non positive; manifolds non; knieper measure; non compact ... See more keywords
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A concave log-like transformation allowing non-positive values

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Published in 2017 at "Economics Letters"

DOI: 10.1016/j.econlet.2017.09.019

Abstract: A hybrid of the hyperbolic sine and its inverse is proposed for applications that require a concave log-like transformation of non-positive data, such as in measuring income and wealth inequality. read more here.

Keywords: non positive; log like; like transformation; transformation allowing ... See more keywords
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On values of the higher derivatives of the Barnes zeta function at non-positive integers

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Published in 2022 at "Kodai Mathematical Journal"

DOI: 10.2996/kmj/kmj45105

Abstract: Let x be a complex number which has a positive real part, and w_1,...,w_N be positive rational numbers. We write w^s \zeta_N (s, x | w_1,...,w_N) as a finite linear combination of the Hurwitz zeta… read more here.

Keywords: function; non positive; barnes zeta; zeta function ... See more keywords
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A comparative study of virus nucleic acid re-positive and non-re-positive patients infected with SARS-CoV-2 Delta variant strain in the Ningxia Hui Autonomous Region

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Published in 2022 at "Frontiers in Public Health"

DOI: 10.3389/fpubh.2022.1023797

Abstract: Objective This study aimed to provide a basis for epidemic prevention and control measures as well as the management of re-positive personnel by analyzing and summarizing the characteristics of re-positive patients with severe acute respiratory… read more here.

Keywords: group; delta variant; non positive; positive group ... See more keywords