期刊名称:International Journal of Mathematics and Mathematical Sciences
印刷版ISSN:0161-1712
电子版ISSN:1687-0425
出版年度:1979
卷号:2
期号:3
页码:523-530
DOI:10.1155/S0161171279000417
出版社:Hindawi Publishing Corporation
摘要:
Sufficient conditions have been found to ensure that all oscillatory solutions of ( r ( t ) y ′ ( t ) ) ′ + a ( t ) y ( t − ξ ( t ) ) = f ( t ) are slowly oscillating. This behaviour is further linked to nonoscillation.