Federico Zullo

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Following the critical analysis of the concept of " sustainability " , developed on the basis of exergy considerations in previous works, an analysis of possible species " behavior " is presented and discussed in this paper. Once more, we make use of one single axiom: that resource consumption (material and immaterial) can be quantified solely in terms of(More)
We construct Bäcklund transformations (BTs) for the Kirchhoff top by taking advantage of the common algebraic Poisson structure between this system and the sl(2) trigonometric Gaudin model. Our BTs are integrable maps providing an exact time-discretization of the system, inasmuch as they preserve both its Poisson structure and its invariants. Moreover, in(More)
The Hamiltonian structure of the Classical Heisenberg Spin Chain (CHSC) has been extensively studied by a number of authors. First of all, we mention Faddeev and Thak-tadjan that, in their fundamental monograph " Hamiltonian Methods in the Theory of Soliton " , elucidate the main properties of both continuous and (semi-)discrete models. An analysis of the(More)
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