caa a22 4500 378906046 CHVBK 20180305123530.0 cr unu---uuuuu 161128e200403 xx s 000 0 eng 10.1515/GMJ.2004.137 doi (NATIONALLICENCE)gruyter-10.1515/GMJ.2004.137 Polák L. Department of Mathematical Analysis, Faculty of Sciences, Masaryk University, Janáčkovo nám. 2a, 662 95 Brno, Czech Republic. E-mail: lspeedy@math.muni.cz Oscillation and Nonoscillation Criteria for two-Dimensional Systems of Linear Ordinary Differential Equations [Elektronische Daten] [L. Polák] Sufficient conditions are established for the oscillation and nonoscillation of the system 𝑢′ = 𝑞(𝑡)𝑣, 𝑣′ = -𝑝(𝑡)𝑢, where 𝑝, 𝑞 : [0, +∞[→] - ∞, +∞[ are locally summable functions, 𝑞(𝑡) ≥ 0 for 𝑡 ≥ 0, and . © Heldermann Verlag Two-dimensional systems of linear ODE nationallicence oscillation and nonoscillation nationallicence Georgian Mathematical Journal Walter de Gruyter GmbH & Co. KG 11/1(2004-03), 137-154 1072-947X 11:1<137 2004 11 GMJ https://doi.org/10.1515/GMJ.2004.137 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1515/GMJ.2004.137 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Polák L. Department of Mathematical Analysis, Faculty of Sciences, Masaryk University, Janáčkovo nám. 2a, 662 95 Brno, Czech Republic. E-mail: lspeedy@math.muni.cz NATIONALLICENCE 773 0- Georgian Mathematical Journal Walter de Gruyter GmbH & Co. KG 11/1(2004-03), 137-154 1072-947X 11:1<137 2004 11 GMJ CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter