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Atualizado em 13/05/2026 · De todos da iMusic
![Cover for Siegfried Carl · Fixed Point Theory in Ordered Sets and Applications: From Differential and Integral Equations to Game Theory (Paperback Book) [2011 edition] (2014)](https://imusic.b-cdn.net/images/item/original/783/9781489981783.jpg?siegfried-carl-2014-fixed-point-theory-in-ordered-sets-and-applications-from-differential-and-integral-equations-to-game-theory-paperback-book&class=scaled&v=1486978403)
![Cover for Siegfried Carl · Nonsmooth Variational Problems and Their Inequalities: Comparison Principles and Applications - Springer Monographs in Mathematics (Paperback Book) [Softcover reprint of hardcover 1st ed. 2007 edition] (2010)](https://imusic.b-cdn.net/images/item/original/339/9781441940339.jpg?siegfried-carl-2010-nonsmooth-variational-problems-and-their-inequalities-comparison-principles-and-applications-springer-monographs-in-mathematics-paperback-book&class=scaled&v=1486978403)
![Cover for Siegfried Carl · Nonsmooth Variational Problems and Their Inequalities: Comparison Principles and Applications - Springer Monographs in Mathematics (Hardcover Book) [2007 edition] (2006)](https://imusic.b-cdn.net/images/item/original/537/9780387306537.jpg?siegfried-carl-2006-nonsmooth-variational-problems-and-their-inequalities-comparison-principles-and-applications-springer-monographs-in-mathematics-hardcover-book&class=scaled&v=1486978403)