401 citations · 1.1k across the 22 of their papers we have counts for
25 papers
CLASS_GWB: robust modeling of the astrophysical gravitational wave background anisotropies
Nicola Bellomo, Daniele Bertacca, Alexander C. Jenkins +5
Gravitational radiation offers a unique possibility to study the large-scale structure of the Universe, gravitational wave sources and propagation in a completely novel way. Given…
Active particles methods towards modeling in science and society
Nicola Bellomo, Diletta Burini, Giovanni Dosi +5
This paper is a first step to chase the ambitious objective of developing a mathmatical theory of living systems. The contents refer modeling large systems of interacting living en…
Towards a mathematical theory of behavioral swarms
Nicola Bellomo, Seung-Yeal Ha, Nisrine Outada
This paper presents a unified mathematical theory of swarms where the dynamics of social behaviors interacts with the mechanical dynamics of self-propelled particles. The term beha…
A multi-scale model of virus pandemic: Heterogeneous interactive entities in a globally connected world
Nicola Bellomo, Richard Bingham, Mark A. J. Chaplain +6
This paper is devoted to the multidisciplinary modelling of a pandemic initiated by an aggressive virus, specifically the so-called \textit{SARS--CoV--2 Severe Acute Respiratory Sy…
Beware of commonly used approximations II: estimating systematic biases in the best-fit parameters
José Luis Bernal, Nicola Bellomo, Alvise Raccanelli +1
Cosmological parameter estimation from forthcoming experiments promise to reach much greater precision than current constraints. As statistical errors shrink, the required control…
Mechanical feedback effects on primordial black hole accretion
Valenti Bosch-Ramon, Nicola Bellomo
Dark matter may consist, at least partially, of primordial black holes formed during the radiation-dominated era. The radiation produced by accretion onto primordial black holes le…
Prospects for Fundamental Physics with LISA
Enrico Barausse, Emanuele Berti, Thomas Hertog +318
In this paper, which is of programmatic rather than quantitative nature, we aim to further delineate and sharpen the future potential of the LISA mission in the area of fundamental…
Projection effects on the observed angular spectrum of the astrophysical stochastic gravitational wave background
Daniele Bertacca, Angelo Ricciardone, Nicola Bellomo +5
The detection and characterization of the Stochastic Gravitational Wave Background (SGWB) is one of the main goals of Gravitational Wave (GW) experiments. The observed SGWB will be…
From Primordial Black Holes Abundance to Primordial Curvature Power Spectrum (and back)
Alba Kalaja, Nicola Bellomo, Nicola Bartolo +5
In the model where Primordial Black Holes (PBHs) form from large primordial curvature (C) perturbations, i.e., CPBHs, constraints on PBH abundance provide in principle constraints…
Can Dark Matter be Geometry? A Case Study with Mimetic Dark Matter
Ali Rida Khalifeh, Nicola Bellomo, José Luis Bernal +1
We investigate the possibility of dark matter being a pure geometrical effect, rather than a particle or a compact object, by exploring a specific modified gravity model: mimetic d…
Measuring the Energy Scale of Inflation with Large Scale Structures
Nicola Bellomo, Nicola Bartolo, Raul Jimenez +2
The determination of the inflationary energy scale represents one of the first step towards the understanding of the early Universe physics. The (very mild) non-Gaussian signals th…
GWLSS: Chasing the Progenitors of Merging Binary Black Holes
Giulio Scelfo, Nicola Bellomo, Alvise Raccanelli +2
Are the stellar-mass merging binary black holes, recently detected by their gravitational wave signal, of stellar or primordial origin? Answering this question will have profound i…
Cosmological implications of Primordial Black Holes
José Luis Bernal, Nicola Bellomo, Alvise Raccanelli +1
The possibility that a relevant fraction of the dark matter might be comprised of Primordial Black Holes (PBHs) has been seriously reconsidered after LIGO's detection of a $\sim 30…
On the Interplay between Behavioral Dynamics and Social Interactions in Human Crowds
Nicola Bellomo, Livio Gibelli, Nisrine Outada
This paper provides an overview and critical analysis on the modeling and applications of the dynamics of human crowds, where social interactions can have an important influence on…
Primordial Black Holes as Dark Matter: Converting Constraints from Monochromatic to Extended Mass Distributions
Nicola Bellomo, José Luis Bernal, Alvise Raccanelli +1
The model in which Primordial Black Holes (PBHs) constitute a non-negligible fraction of the dark matter has (re)gained popularity after the first detections of binary black hole m…
Hiding neutrino mass in modified gravity cosmologies
Nicola Bellomo, Emilio Bellini, Bin Hu +3
Cosmological observables show a dependence with the neutrino mass, which is partially degenerate with parameters of extended models of gravity. We study and explore this degeneracy…
A degenerate chemotaxis system with flux limitation: Finite-time blow-up
Nicola Bellomo, Michael Winkler
This paper is concerned with radially symmetric solutions of the parabolic-elliptic version of the Keller-Segel system with flux limitation, as given by \begin{equation} \left\{ \b…
A degenerate chemotaxis system with flux limitation: Maximally extended solutions and absence of gradient blow-up
Nicola Bellomo, Michael Winkler
This paper aims at providing a first step toward a qualitative theory for a new class of chemotaxis models derived from the celebrated Keller-Segel system, with the main novelty be…
Stochastic Evolving Differential Games Toward a Systems Theory of Behavioral Social Dynamics
Giulia Ajmone Marsan, Nicola Bellomo, Livio Gibelli
This paper proposes a systems approach to social sciences based on mathematical framework derived from a generalization of the mathematical kinetic theory and on theoretical tools…
First Order Models of Human Crowds with Behavioral-Social Dynamics
Nicola Bellomo, Stefano Berrone, Livio Gibelli +1
This paper presents a new approach to behavioral-social dynamics of human crowds. First order models are derived based on mass conservation at the macroscopic scale, while methods…
From a systems theory of sociology to modeling the onset and evolution of criminality
N. Bellomo, F. Colasuonno, D. Knopoff +1
This paper proposes a systems theory approach to the modeling of onset and evolution of criminality in a territory, which aims at capturing the complexity features of social system…
Toward a Mathematical Theory of Behavioral-Social Dynamics for Pedestrian Crowds
Nicola Bellomo, Livio Gibelli
This paper presents a new approach to behavioral-social dynamics of pedestrian crowds by suitable development of methods of the kinetic theory. It is shown how heterogeneous indivi…
Superfluid hydrodynamics of polytropic gases:dimensional reduction and sound velocity
Nicola Bellomo, Giovanni Mazzarella, Luca Salasnich
Motivated by the fact that two-component confined fermionic gases in Bardeen-Cooper-Schrieffer-Bose-Einstein condensate (BCS-BEC) crossover can be described through an hydrodynamic…
From the Micro-scale to Collective Crowd Dynamics
Nicola Bellomo, Abdelghani Bellouquid, Damian Knopoff
This paper deals with the kinetic theory modeling of crowd dynamics with the aim of showing how the dynamics at the micro-scale is transferred to the dynamics of collective behavio…