In this article, the notion of modular multiplicative inverse operator (MMIO): I : (Z/ Z) * −→ Z/ Z, I (a) = a −1 , where = b × d > 3 with b, d ∈ N, is introduced and studied. A general method to decompose (MMIO) over group of units of the form (Z/ Z) * is also discussed through a new algorithmic functional version of Bezout's theorem. As a result, interesting decomposition laws for (MMIO)'s over (Z/ Z) * are obtained. Several numerical examples confirming the theoretical results are also reported.
En este trabajo consideramos el problema de existencia de soluciones globales para la ecuación escalar de la onda con disipación. Estudiamos también el comportamiento asintótico de las soluciones, y presentamos un método alternativo inspirado en técnicas no lineales; específicamente usamos el método de Conrad-Rao [1].
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