On a boundary version of Morera's theorem.
Myslivets, S.G. (2001)
Sibirskij Matematicheskij Zhurnal
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Myslivets, S.G. (2001)
Sibirskij Matematicheskij Zhurnal
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Akysh, A.Sh. (2002)
Sibirskij Matematicheskij Zhurnal
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Grigor'eva, E.G. (2000)
Siberian Mathematical Journal
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Yang, Dachun (2002)
Georgian Mathematical Journal
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Èmanuilov, O.Yu. (2000)
Sibirskij Matematicheskij Zhurnal
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Akishev, G.A. (2006)
Sibirskie Ehlektronnye Matematicheskie Izvestiya [electronic only]
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Petojević, Aleksandar (2005)
Novi Sad Journal of Mathematics
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Bretti, Gabriella, Natalini, Pierpaolo (2004)
Georgian Mathematical Journal
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Sui Cheng, Guang Zhang (2000)
Annales Polonici Mathematici
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This paper is concerned with a class of nonlinear difference inequalities which include many different classes of difference inequalities and equations as special cases. By means of a Riccati type transformation, necessary and sufficient conditions for the existence of eventually positive solutions and positive nonincreasing solutions are obtained. Various type of comparison theorems are also derived as applications, which extends many theorems in the literature.
Goginava, U. (2000)
Georgian Mathematical Journal
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Abramovich, S., Ivelic, S., Pecaric, J.E. (2010)
Banach Journal of Mathematical Analysis [electronic only]
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Owa, Shigeyoshi, Hayami, Toshio, Kurori, Kazuo (2007)
Acta Universitatis Apulensis. Mathematics - Informatics
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Xia, Jianye, Liu, Yuji (2010)
Electronic Journal of Differential Equations (EJDE) [electronic only]
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Breaz, Daniel (2008)
Acta Universitatis Apulensis. Mathematics - Informatics
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