Zobrazeno 1 - 10
of 165
pro vyhledávání: '"Pignotti, Cristina"'
We study Hegselmann-Krause type opinion formation models with non-universal interaction and time-delayed coupling. We assume the presence of a common influencer between two different agents. Moreover, we explore two cases in which such an assumption
Externí odkaz:
http://arxiv.org/abs/2407.16901
In this paper, we deal with first and second-order alignment models with non-universal interaction, time delay and possible lack of connection between the agents. More precisely, we analyze the situation in which the system's agents do not transmit i
Externí odkaz:
http://arxiv.org/abs/2407.06647
We study the emergence of synchronization in the Kuramoto model on a digraph in the presence of time delays. Assuming the digraph is strongly connected, we first establish a uniform bound on the phase diameter and subsequently prove the asymptotic fr
Externí odkaz:
http://arxiv.org/abs/2406.01703
Autor:
Continelli, Elisa, Pignotti, Cristina
In this paper, we study well-posedness and exponential stability for semilinear second order evolution equations with memory and time-varying delay feedback. The time delay function is assumed to be continuous and bounded. Under a suitable assumption
Externí odkaz:
http://arxiv.org/abs/2404.17706
Autor:
Cicolani, Chiara, Pignotti, Cristina
We study a Hegselmann-Krause type opinion formation model for a system of two populations. The two groups interact with each other via subsets of individuals, namely the leaders, and natural time delay effects are considered. By using careful estimat
Externí odkaz:
http://arxiv.org/abs/2404.07007
Autor:
Continelli, Elisa, Pignotti, Cristina
In this note, we analyze an abstract evolution equation with time-dependent time delay and time-dependent delay feedback coefficient. We assume that the operator corresponding to the nondelayed part of the model generates an exponentially stable semi
Externí odkaz:
http://arxiv.org/abs/2404.03467
We consider several classes of degenerate hyperbolic equations involving delay terms and suitable nonlinearities. The idea is to rewrite the problems in an abstract way and, using semigroup theory and energy method, we study well posedness and stabil
Externí odkaz:
http://arxiv.org/abs/2402.01023
Autor:
Continelli, Elisa, Pignotti, Cristina
In this paper, we analyze a Hegselmann-Krause opinion formation model and a Cucker-Smale flocking model with attractive-repulsive interaction. To be precise, we investigate the situation in which the individuals involved in an opinion formation or a
Externí odkaz:
http://arxiv.org/abs/2311.13238
Autor:
Continelli, Elisa, Pignotti, Cristina
In this paper, we analyze a Hegselmann-Krause opinion formation model with attractive-lacking interaction. More precisely, we investigate the situation in which the individuals involved in an opinion formation process interact among themselves but ca
Externí odkaz:
http://arxiv.org/abs/2306.07658
Autor:
Continelli, Elisa, Pignotti, Cristina
In this paper, we deal with a minimum time problem in presence of a time delay $\tau.$ The value function of the considered optimal control problem is no longer defined in a subset of $\mathbb{R}^{n}$, as it happens in the undelayed case, but its dom
Externí odkaz:
http://arxiv.org/abs/2304.13569