caa a22 4500 378920979 CHVBK 20180305123605.0 cr unu---uuuuu 161128e200406 xx s 000 0 eng 10.1515/GMJ.2004.391 doi (NATIONALLICENCE)gruyter-10.1515/GMJ.2004.391 Wang Qi-Ru Department of Mathematics, Sun Yat-sen (Zhongshan) University, Guangzhou 510275, People's Republic of China. E-mail: wangqr168@263.net Oscillation Results for Second Order Self-Adjoint Matrix Differential Systems [Elektronische Daten] [Qi-Ru Wang] By employing the matrix Riccati technique and the integral averaging technique, new oscillation criteria are established for a second order self-adjoint matrix differential system of the form [𝑌(𝑡)𝑌′]′ + 𝑄(𝑡)𝑌 = 0. © Heldermann Verlag Matrix differential systems nationallicence oscillation nationallicence matrix Riccati technique nationallicence integral averaging technique nationallicence Georgian Mathematical Journal Walter de Gruyter GmbH & Co. KG 11/2(2004-06), 391-400 1072-947X 11:2<391 2004 11 GMJ https://doi.org/10.1515/GMJ.2004.391 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1515/GMJ.2004.391 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Wang Qi-Ru Department of Mathematics, Sun Yat-sen (Zhongshan) University, Guangzhou 510275, People's Republic of China. E-mail: wangqr168@263.net NATIONALLICENCE 773 0- Georgian Mathematical Journal Walter de Gruyter GmbH & Co. KG 11/2(2004-06), 391-400 1072-947X 11:2<391 2004 11 GMJ CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter