Search Results - "Arioli, Gianni"
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Existence and stability of traveling pulse solutions of the FitzHugh–Nagumo equation
Published in Nonlinear analysis (01-01-2015)“…The FitzHugh–Nagumo model is a reaction–diffusion equation describing the propagation of electrical signals in nerve axons and other biological tissues. One of…”
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A new mathematical explanation of what triggered the catastrophic torsional mode of the Tacoma Narrows Bridge
Published in Applied mathematical modelling (15-01-2015)“…The spectacular collapse of the Tacoma Narrows Bridge has attracted the attention of engineers, physicists, and mathematicians in the last 74years. There have…”
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Some Reversing Orbits for a Rattleback Model
Published in Journal of nonlinear science (01-06-2022)“…A physical rattleback is a toy that can exhibit counter-intuitive behavior when spun on a horizontal plate. Most notably, it can spontaneously reverse its…”
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A Hopf Bifurcation in the Planar Navier–Stokes Equations
Published in Journal of mathematical fluid mechanics (01-08-2021)“…We consider the Navier–Stokes equation for an incompressible viscous fluid on a square, satisfying Navier boundary conditions and being subjected to a…”
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Uniqueness and Bifurcation Branches for Planar Steady Navier–Stokes Equations Under Navier Boundary Conditions
Published in Journal of mathematical fluid mechanics (01-08-2021)“…The stationary Navier–Stokes equations under Navier boundary conditions are considered in a square. The uniqueness of solutions is studied in dependence of the…”
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Changing behaviour under unfairness: An evolutionary model of the Ultimatum Game
Published in International journal of approximate reasoning (01-01-2024)Get full text
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Some Breathers and Multi-breathers for FPU-Type Chains
Published in Communications in mathematical physics (01-12-2019)“…We consider several breather solutions for FPU-type chains that have been found numerically. Using computer-assisted techniques, we prove that there exist true…”
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Non-symmetric low-index solutions for a symmetric boundary value problem
Published in Journal of Differential Equations (2012)“…We consider the equation − Δ u = w u 3 on a square domain in R 2 , with Dirichlet boundary conditions, where w is a given positive function that is invariant…”
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Optimization of the Forcing Term for the Solution of Two-Point Boundary Value Problems
Published in Journal of mathematics (Hidawi) (01-01-2013)“…We present a new numerical method for the computation of the forcing term of minimal norm such that a two-point boundary value problem admits a solution. The…”
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Computer assisted proof of branches of stationary and periodic solutions, and Hopf bifurcations, for dissipative PDEs
Published in Communications in nonlinear science & numerical simulation (01-02-2022)“…We discuss an approach to the computer assisted proof of the existence of branches of stationary and periodic solutions for dissipative PDEs, using the…”
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Torsional instability in suspension bridges: The Tacoma Narrows Bridge case
Published in Communications in nonlinear science & numerical simulation (01-01-2017)“…•Thresholds of torsional instability of suspension bridges.•Periodic solutions for a nonlinear model of a suspension bridge.•Application of Floquet theory to…”
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Validated numerical solutions for a semilinear elliptic equation on some topological annuli in the plane
Published in Journal of Differential Equations (25-04-2023)“…We consider the equation −Δw=w3 with zero boundary conditions on planar domains that are conformal images of annuli. Starting with an approximate solution, we…”
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Multibump solutions and critical groups
Published in Transactions of the American Mathematical Society (01-06-2009)“…We consider the Newtonian system -\ddot q+B(t)q = W_q(q,t) with B, W periodic in t, B positive definite, and show that for each isolated homoclinic solution…”
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Two novel methods and multi-mode periodic solutions for the fermi-pasta-ulam model
Published in Communications in mathematical physics (01-04-2005)Get full text
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15
Non-radial solutions for some semilinear elliptic equations on the disk
Published in Nonlinear analysis (01-02-2019)“…Starting with approximate solutions of the equation −Δu=wu3 on the disk, with zero boundary conditions, we prove that there exist true solutions nearby. One of…”
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A path integral based model for stocks and order dynamics
Published in Physica A (15-11-2018)“…We present a model for the short-term dynamics of financial assets based on an application to finance of quantum gauge theory, developing ideas of Ilinski. We…”
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A model for stocks dynamics based on a non-Gaussian path integral
Published in Physica A (01-03-2019)“…We introduce a model for the dynamics of stock prices based on a non quadratic path integral. The model is a generalization of Ilinski’s path integral model,…”
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WITHDRAWN: An algorithm for the study of parameter dependence applied to hyperbolic systems
Published in Applied mathematical modelling (01-08-2016)Get full text
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Mathematics Education with Conjectures and Refutations
Published in Journal of systemics, cybernetics and informatics (01-04-2020)“…In this paper we discuss how Popper's epistemology and Lakatos' view on the development of mathematics may provide some interesting ideas to mathematics…”
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Computer-Assisted Methods for the Study of Stationary Solutions in Dissipative Systems, Applied to the Kuramoto–Sivashinski Equation
Published in Archive for rational mechanics and analysis (01-09-2010)“…We develop some computer-assisted techniques for the analysis of stationary solutions of dissipative partial differential equations, of their stability, and of…”
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