Untitled - Dipartimento di Matematica e Informatica "Ulisse Dini"

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in the first and last side of the following relation. A*u= - (au' – hku)' + (bku' + cu), where. K(4 + I) , p*) = (A++ AI) 4*, p*) = = {(A* + 21) vk, uk) = ((A + AI) v, ut).