23 citations · 71 across the 10 of their papers we have counts for
10 papers
A conjecture on demographic mortality at high ages
Giuseppe Alberti
The study considers the model of an abstract organism, called Arbitrary Oscillator (ArbO), which is capable of making decisions at each timed step. These decisions are 'critical' s…
Fermi statistics method applied to model macroscopic demographic data
Giuseppe Alberti
The study begins by considering an abstract object (cellular automaton) able of moving -- by arbitrary decision -- between two given fixed positions. That is, at each clock step, i…
Caloric curves of classical self-gravitating systems in general relativity
Giuseppe Alberti, Pierre-Henri Chavanis
We determine the caloric curves of classical self-gravitating systems at statistical equilibrium in general relativity. In the classical limit, the caloric curves of a self-gravita…
Gravitational phase transitions and instabilities of self-gravitating fermions in general relativity
Pierre-Henri Chavanis, Giuseppe Alberti
We discuss the occurrence of gravitational phase transitions and instabilities in a gas of self-gravitating fermions within the framework of general relativity. In the classical (n…
Gravitational phase transition of self-gravitating systems of fermions in General Relativity
Giuseppe Alberti, Pierre-Henri Chavanis
The Thomas-Fermi model is extended at finite temperature, to describe the gravitational phase transition occurring in massive fermionic systems in a general-relativistic framework.…
On the dynamical instability of self-gravitating systems
Giuseppe Alberti
We study the dynamical stability of self-gravitating systems in presence of anisotropy. In particular, we introduce a stability criterion, in terms of the adiabatic local index, th…