Search Results - "Garnier, Josselin"
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1
Wave propagation in random media: beyond Gaussian statistics
Published in ESAIM. Proceedings and surveys (01-01-2023)“…In this paper we review some aspects of wave propagation in random media. In the physics literature the picture seems simple: for large propagation distances,…”
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2
Incoherent soliton turbulence in nonlocal nonlinear media
Published in Physical review letters (29-11-2011)“…The long-term behavior of a modulationally unstable nonintegrable system is known to be characterized by the soliton turbulence self-organization process: It…”
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3
Shape recognition and classification in electro-sensing
Published in Proceedings of the National Academy of Sciences - PNAS (12-08-2014)“…This paper aims at advancing the field of electro-sensing. It exhibits physical mechanisms underlying shape perception for weakly electric fish. These fish…”
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4
A two-step procedure for time-dependent reliability-based design optimization involving piece-wise stationary Gaussian processes
Published in Structural and multidisciplinary optimization (01-04-2022)“…We consider in this paper a time-dependent reliability-based design optimization (RBDO) problem with constraints involving the maximum and/or the integral of a…”
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5
A Mean Field Game Model for Renewable Investment Under Long-Term Uncertainty and Risk Aversion
Published in Dynamic games and applications (2024)“…We consider a stylized model for investment into renewable power plants under long-term uncertainty. We model risk-averse agents facing heterogeneous weather…”
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6
System of radiative transfer equations for coupled surface and body waves
Published in Zeitschrift für angewandte Mathematik und Physik (01-10-2022)“…We obtain and analyze a system of radiative transfer equations associated with surface and body waves. The system accounts for a boundary along which surface…”
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7
Implied Volatility Structure in Turbulent and Long-Memory Markets
Published in Frontiers in applied mathematics and statistics (29-04-2020)“…We consider fractional stochastic volatility models that extend the classic Black–Scholesmodel for asset prices. The models are general and motivatedby recent…”
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8
Incoherent Shock and Collapse Singularities in Non-Instantaneous Nonlinear Media
Published in Applied sciences (01-12-2018)“…We study the dynamics of a partially incoherent optical pulse that propagates in a slowly responding nonlinear Kerr medium. We show that irrespective of the…”
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9
A reconstruction algorithm for ultrasound-modulated diffuse optical tomography
Published in Proceedings of the American Mathematical Society (01-09-2014)“…The aim of this paper is to develop an efficient reconstruction algorithm for ultrasound-modulated diffuse optical tomography. In diffuse optical imaging, the…”
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10
Thermalization of light waves in multimode optical fibers: Negative temperatures equilibrium states and the role of disorder - INVITED
Published in EPJ Web of conferences (2023)“…Nonlinear random waves exhibit a phenomenon of irreversible thermalization, in analogy with the thermalization of a classical gas system. This irreversible…”
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11
Resolution and stability analysis in full-aperture, linearized conductivity and wave imaging
Published in Proceedings of the American Mathematical Society (01-10-2013)“…In this paper we consider resolution estimates in both the linearized conductivity problem and the wave imaging problem. Our purpose is to provide explicit…”
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12
High to Low pellet cladding gap heat transfer modeling methodology in an uncertainty quantification framework for a PWR Rod Ejection Accident with best estimate coupling
Published in EPJ nuclear sciences & technologies (01-01-2020)“…High to Low modeling approaches can alleviate the computationally expensive fuel modeling in nuclear reactor’s transient uncertainty quantification. This is…”
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13
Mathematical modeling of fluorescence diffuse optical imaging of cell membrane potential changes
Published in Quarterly of applied mathematics (01-03-2014)“…The aim of this paper is to provide a mathematical model for spatial distribution of membrane electrical potential changes by fluorescence diffuse optical…”
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14
Modal formulation and paraxial approximation for acoustic wave propagation in waveguides with surface perturbations
Published in The Journal of the Acoustical Society of America (01-05-2022)“…We propose a modal approach developed in the framework of the paraxial approximation to investigate the effects of deterministic surface perturbations in a…”
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15
A Control Variate Method Driven by Diffusion Approximation
Published in Communications on pure and applied mathematics (01-03-2022)“…In this paper we introduce a control variate estimator for a quantity of interest that can be expressed as the expectation of a function of a random process,…”
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16
Chaos and order in the bitcoin market
Published in Physica A (15-06-2019)“…The bitcoin price has surged in recent years and it has also exhibited phases of rapid decay. In this paper we address the question to what extent this novel…”
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17
Fourth-order moments analysis for partially coherent electromagnetic beams in random media
Published in Waves in random and complex media (06-11-2023)“…A theory for the characterization of the fourth-order moment of electromagnetic wave beams is presented in the case when the source is partially coherent. A…”
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18
Dramatic Acceleration of Wave Condensation Mediated by Disorder in Multimode Fibers
Published in Physical review letters (29-03-2019)“…Classical nonlinear waves exhibit a phenomenon of condensation that results from the natural irreversible process of thermalization, in analogy with the…”
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19
Emergence of turbulent epochs in oil prices
Published in Chaos, solitons and fractals (01-05-2019)“…•A novel algorithm is presented for estimation of multi-fractals.•The robustness of the algorithm is illustrated with both synthetic and real data.•The…”
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20
Automated approach for recovering modal components in shallow waters
Published in The Journal of the Acoustical Society of America (01-04-2024)“…This paper proposes a fully automated method for recovering modal components from a signal in shallow waters. The scenario involves an unknown source emitting…”
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