2024-03-28T15:11:41Z
https://oai.zbmath.org/v1/
oai:zbmath.org:1999252
2003-12-03T23:00:00Z
34
Klaus R. Schneider (Berlin)
Vrkoč, Ivo
2001
1999252
English
Springer International Publishing (SpringerOpen), Cham
https://zbmath.org/01999252
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J. Inequal. Appl. 6, No. 2, 191-198 (2001).
34B15; 34A40
Comparison of two definitions of lower and upper functions associated to nonlinear second order differential equations
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