This publication introduces the strategy of reduce and higher options for usual differential equations. this technique is understood to be either effortless and robust to resolve moment order boundary price difficulties. along with an intensive creation to the tactic, the 1st 1/2 the booklet describes a few fresh and extra concerned effects in this topic. those challenge the mixed use of the strategy with measure idea, with variational equipment and optimistic operators. the second one half the ebook issues purposes. This half exemplifies the tactic and offers the reader with a reasonably large advent to the not easy of boundary worth difficulties. even supposing the e-book issues generally traditional differential equations, a few realization is given to different settings similar to partial differential equations or sensible differential equations. a close heritage of the matter is defined within the introduction.

· provides the basic positive factors of the method
· building of reduce and higher ideas in problems
· operating functions and illustrated theorems by means of examples
· Description of the historical past of the tactic and Bibliographical notes

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