The paper presents an extension of Gronwall's inequality to n independent variables. The inequality is established by solving a characteristic initial value problem by the Riemann method. Thus a ...

Kurt Friedrichs, On Certain Inequalities and Characteristic Value Problems for Analytic Functions and For Functions of Two Variables, Transactions of the American Mathematical Society, Vol. 41, No. 3 ...

Learn about and revise how to show inequalities on number lines and graphs, as well as solve inequalities with this BBC Bitesize GCSE Maths Edexcel guide.