Martínez, S.; Plastino, A. - In: Physica A: Statistical Mechanics and its Applications 345 (2005) 3, pp. 493-505
We revisit the first law of thermodynamics for nonextensive statistics by recourse to the optimal Lagrange multipliers (OLM) formalism. We show firstly that information theory allows one to obtain thermodynamics' first law in a general ensemble by dealing just with variations in the density...