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Let F be a germ of holomorphic diffeomorphism of C2 fixing O and such that dFO has eigenvalues 1 and eiθ with |eiθ| = 1 and eiθ = 1. Introducing suitable normal forms for F we define an invariant, ν(F) ≥ 2, and a generic condition, that of being dynamically separating. In the case F is dynamically separating, we prove that there exist ν(F)− 1 parabolic(More)
To determine the effect of BaSO4 on the fatigue crack growth rate, da/dN = C(delta K)n, of poly(methyl methacrylate) (PMMA) bone cement, radiopaque bone cement, radiolucent bone cement, and commercial PMMA (Plexiglas) were tested using a methodology based on ASTM E647. The crack growth rate of radiopaque bone cement was one order of magnitude less than that(More)
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