activity
20142026
most citedA New Characterization of Path Graphs

1 citations · 1 across the 12 of their papers we have counts for

collaborators

15 papers

math.CO2026

A universal dichotomy for concentration in randomly colored graphs

Nicola Apollonio

Let be Euclidean norm of the degree sequence of a graph normalized by the graph size. We prove that when the vertices of a graph are randomly colored with colors such that…

math.PR2026

The Critical Patch Size Problem in Random Graphs

Nicola Apollonio, Veronica Tora, Davide Vergni

The problem of {\it critical patch size} -- a threshold condition for population persistence -- is investigated in the context of discrete habitats, modeled as graphs with a distin…

stat.ML2025

Posterior Bayesian Neural Networks with Dependent Weights

Nicola Apollonio, Giovanni Franzina, Giovanni Luca Torrisi

We consider fully connected and feedforward deep neural networks with dependent and possibly heavy-tailed weights, as introduced in [26], to address limitations of the standard Gau…

math.CO2024

Functions that are uniquely maximized by sparse quasi-star graphs, and uniquely minimized by quasi-complete graphs

Nicola Apollonio

We show that for a certain class of convex functions , including the exponential functions with a real number, and all the powers , $x\geq…

math.PR2023

Cantelli's bounds for generalized tail inequalities in Euclidean spaces

Nicola Apollonio

Let be a centered random vector in a finite dimensional real inner product space . For a subset of the ambient vector space of and $x,\,y\in…

math.PR2023

Normal approximation of Random Gaussian Neural Networks

Nicola Apollonio, Daniela De Canditiis, Giovanni Franzina +2

In this paper we provide explicit upper bounds on some distances between the (law of the) output of a random Gaussian NN and (the law of) a random Gaussian vector. Our results conc…

math.CO2023

Second-order moments of the size of randomly induced subgraphs of given order

Nicola Apollonio

For a graph and a positive integer , let be the size of a subgraph of induced by a randomly sampled subset of vertices. Second-order moments of enc…

math.ST2022

Network homophily via tail inequalities

Nicola Apollonio, Paolo G. Franciosa, Daniele Santoni

Homophily is the principle whereby "similarity breeds connections". We give a quantitative formulation of this principle within networks. Given a network and a labeled partition of…

math.CO2022

Two New Characterizations of Path Graphs

Nicola Apollonio, Lorenzo Balzotti

Path graphs are intersection graphs of paths in a tree. We start from the characterization of path graphs by Monma and Wei [C.L.~Monma,~and~V.K.~Wei, Intersection Graphs of Paths i…

cs.DM2021

A novel method for assessing and measuring homophily in networks through second-order statistics

Nicola Apollonio, Paolo Giulio Franciosa, Daniele Santoni

We present a new method for assessing and measuring homophily in networks whose nodes have categorical attributes, namely when the nodes of networks come partitioned into classes (…

cs.DM2019★ 1 cited

A New Characterization of Path Graphs

Nicola Apollonio, Lorenzo Balzotti

Path graphs are intersection graphs of paths in a tree.~In this paper we give a "6\ good characterization" of path graphs, namely, we prove that path graph membership is in $NP\cap…

cs.DM2015

A tight relation between series-parallel graphs and Bipartite Distance Hereditary graphs

Nicola Apollonio, Massimiliano Caramia, Paolo Giulio Franciosa +1

Bandelt and Mulder's structural characterization of Bipartite Distance Hereditary graphs asserts that such graphs can be built inductively starting from a single vertex and by repe…

cs.DM2015

On Computing the Galois Lattice of Bipartite Distance Hereditary Graphs

Nicola Apollonio, Paolo Giulio Franciosa

The class of Bipartite Distance Hereditary (BDH) graphs is the intersection between bipartite domino-free and chordal bipartite graphs.\ Graphs in both the latter classes have line…

cs.DM2014

Minimally unbalanced diamond-free graphs and Dyck-paths

N. Apollonio, A. Galluccio

A -matrix is balanced if it does not contain a submatrix of odd order having exactly two 1's per row and per column. A graph is balanced if its clique-matrix…

cs.DM2014

On the Galois Lattice of Bipartite Distance Hereditary Graphs

Nicola Apollonio, Massimiliano Caramia, Paolo Giulio Franciosa

We give a complete characterization of bipartite graphs having tree-like Galois lattices. We prove that the poset obtained by deleting bottom and top elements from the Galois latti…