Glasnik Matematicki, Vol. 34, No.2 (1999), 211-221.
FIRST ORDER DIFFERENTIAL EQUATIONS WITH A
PARAMETER
Tadeusz Jankowski
Technical University of Gdansk, Department of Differential
Equations, 11/12 G. Narutowicz Str., 80-952 Gdansk, Poland
e-mail: tjank@mifgate.mif.pg.gda.pl
Abstract. Employing the method of upper and lower
solutions and monotone iterative technique, existence of
extremal solutions to differential equations with a
parameter is proved.
1991 Mathematics Subject Classification.
34A45.
Key words and phrases. Monotone iterative technique,
differential equations, convergence.
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