Bibliografías temáticas / Girsanov controls

Literatura académica sobre el tema "Girsanov controls"

Autor: Grafiati
Publicado: 6 de septiembre de 2023

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Artículos de revistas sobre el tema "Girsanov controls"

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Kanjilal, Oindrila y C. S. Manohar. "Estimation of time-variant system reliability of nonlinear randomly excited systems based on the Girsanov transformation with state-dependent controls". Nonlinear Dynamics 95, n.º 2 (26 de noviembre de 2018): 1693–711. http://dx.doi.org/10.1007/s11071-018-4655-6.

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Delavarkhalafi, Ali, Fatemion Aghda y Mahdieh Tahmasebi. "Maximum principle for forward-backward partially observed optimal control of stochastic systems with delay". Filomat 37, n.º 3 (2023): 809–32. http://dx.doi.org/10.2298/fil2303809d.

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In this paper, we consider partially observed optimal control for forward-backward stochastic delay differential equations (FBSDDEs) where the control domain is non-convex and the control variable is allowed to enter into both diffusion and observation terms. We obtain a general stochastic maximum principle of these optimal control problems by using Girsanov?s theorem, the spike variational method and the filtering technique. We also derive the adjoint equations to the problem. Finally, we apply our results to study a linear-quadratic (LQ) optimal control with delay.
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De Lara, M. Cohen y J. Lévine. "Deterministic feedback linearization, Girsanov transformations and finite-dimensional filters". Systems & Control Letters 13, n.º 1 (julio de 1989): 81–92. http://dx.doi.org/10.1016/0167-6911(89)90024-8.

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Knopov, Pavel, Tatyana Pepelyaeva y Sergey Shpiga. "ON OPTIMAL CONTROL OF A STOCHASTIC EQUATION WITH A FRACTIONAL WIENER PROCESS". Journal of Automation and Information sciences 6 (1 de noviembre de 2021): 5–12. http://dx.doi.org/10.34229/1028-0979-2021-6-1.

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In recent years, a new direction of research has emerged in the theory of stochastic differential equations, namely, stochastic differential equations with a fractional Wiener process. This class of processes makes it possible to describe adequately many real phenomena of a stochastic nature in financial mathematics, hydrology, biology, and many other areas. These phenomena are not always described by stochastic systems satisfying the conditions of strong mixing, or weak dependence, but are described by systems with a strong dependence, and this strong dependence is regulated by the so-called Hurst parameter, which is a characteristic of this dependence. In this article, we consider the problem of the existence of an optimal control for a stochastic differential equation with a fractional Wiener process, in which the diffusion coefficient is present, which gives more accurate simulation results. An existence theorem is proved for an optimal control of a process that satisfies the corresponding stochastic differential equation. The main result was obtained using the Girsanov theorem for such processes and the existence theorem for a weak solution for stochastic equations with a fractional Wiener process.
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Beliavsky, Grigory I., Natalia V. Danilova y Gennady A. Ougolnitsky. "Approximation of supremum and infimum processes as a stochastic approach to the providing of homeostasis". Vestnik of Saint Petersburg University. Applied Mathematics. Computer Science. Control Processes 18, n.º 1 (2022): 5–17. http://dx.doi.org/10.21638/11701/spbu10.2022.101.

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We consider the calculation of bounded functional of the trajectories of a stationary diffusion process. Since an analytical solution to this problem does not exist, it is necessary to use numerical methods. One possible direction for obtaining the numerical method is applying the Monte Carlo (MC) method. This involves reproducing the trajectory of a random process with subsequent averaging over the trajectories. To simplify the reproduction of the trajectory, the Girsanov transform is used in this paper. The main goal is to approximate the supremum and infimum processes, which allows us to more accurately compute the mathematical expectation of a function depending on the values of the supremum and infimum processes at the end of the time interval compared to the classical method. The method is based on randomly dividing the interval of the time axis by stopping times passages of the Wiener process, approximating the density to replace the measure, and using the MC method to calculate the expectation. One of the applications of the method is the task of keeping a random process in a given area the problem of homeostasis.
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Kanjilal, Oindrila y C. S. Manohar. "State dependent Girsanov’s controls in time variant reliability estimation in randomly excited dynamical systems". Structural Safety 72 (mayo de 2018): 30–40. http://dx.doi.org/10.1016/j.strusafe.2017.12.004.

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Li, Ruijing, Heping Ma y Chaozhu Hu. "Maximum principle for partially observed leader–follower stochastic differential game". IET Control Theory & Applications, 27 de agosto de 2023. http://dx.doi.org/10.1049/cth2.12536.

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AbstractThis paper deals with the optimal control problem for partially observed leader–follower stochastic differential game. By virtue of the classical variational method and Girsanov's theorem, the stochastic maximum principles for the follower under one type of partially observed case and for the leader under the complete information structure are derived. As applications, two partially observed cases are considered for the linear–quadratic models. Then by the stochastic filtering technique, the optimal feedback controls for the follower and the leader are represented by the new stochastic Riccati equations.
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Tesis sobre el tema "Girsanov controls"

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Pagliarani, Stefano. "Portfolio optimization and option pricing under defaultable Lévy driven models". Doctoral thesis, Università degli studi di Padova, 2014. http://hdl.handle.net/11577/3423519.

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In this thesis we study some portfolio optimization and option pricing problems in market models where the dynamics of one or more risky assets are driven by Lévy processes, and it is divided in four independent parts. In the first part we study the portfolio optimization problem, for the logarithmic terminal utility and the logarithmic consumption utility, in a multi-defaultable Lévy driven model. In the second part we introduce a novel technique to price European defaultable claims when the pre-defaultable dynamics of the underlying asset follows an exponential Lévy process. In the third part we develop a novel methodology to obtain analytical expansions for the prices of European derivatives, under stochastic and/or local volatility models driven by Lévy processes, by analytically expanding the integro-differential operator associated to the pricing problem. In the fourth part we present an extension of the latter technique which allows for obtaining analytical expansion in option pricing when dealing with path-dependent Asian-style derivatives.
In questa tesi studiamo alcuni problemi di portfolio optimization e di option pricing in modelli di mercato dove le dinamiche di uno o più titoli rischiosi sono guidate da processi di Lévy. La tesi é divisa in quattro parti indipendenti. Nella prima parte studiamo il problema di ottimizzare un portafoglio, inteso come massimizzazione di un’utilità logaritmica della ricchezza finale e di un’utilità logaritmica del consumo, in un modello guidato da processi di Lévy e in presenza di fallimenti simultanei. Nella seconda parte introduciamo una nuova tecnica per il prezzaggio di opzioni europee soggette a fallimento, i cui titoli sottostanti seguono dinamiche che prima del fallimento sono rappresentate da processi di Lévy esponenziali. Nella terza parte sviluppiamo un nuovo metodo per ottenere espansioni analitiche per i prezzi di derivati europei, sotto modelli a volatilità stocastica e locale guidati da processi di Lévy, espandendo analiticamente l’operatore integro-differenziale associato al problema di prezzaggio. Nella quarta, e ultima parte, presentiamo un estensione della tecnica precedente che consente di ottenere espansioni analitiche per i prezzi di opzioni asiatiche, ovvero particolari tipi di opzioni il cui payoff dipende da tutta la traiettoria del titolo sottostante.
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Capítulos de libros sobre el tema "Girsanov controls"

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Björk, Tomas. "Good Deal Bounds". En Arbitrage Theory in Continuous Time, 441–48. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198851615.003.0034.

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In this chapter we study an incomplete market, but we do not look for a unique martingale measure. Instead we try to find “reasonable” bounds on arbitrage free prices. The terms “reasonable” is formalized in terms of a price rule with bounded Sharpe ratio–so-called good deal bounds. We study a factor model and show that the good deal bounds can be obtained by solving a control problem where the likelihood process acts as a state variable, and the Girsanov kernel is the control variable. The theory is then applied to concrete examples.
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Björk, Tomas. "The Mathematics of the Martingale Approach". En Arbitrage Theory in Continuous Time, 171–84. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198851615.003.0012.

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In this chapter we present the two main mathematical results which are needed for the application of the martingale approach to pricing and hedging. We first discuss and prove the martingale representation theorem which says that in a Wiener framework, every martingale can be represented as a stochastic integral. We then discuss and prove the Girsanov Theorem which gives us control over the class of absolutely continuous measure transformations. The abstract theory is then applied to stochastic differential equations, and to maximum likelihood estimation.
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Actas de conferencias sobre el tema "Girsanov controls"

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Vladimirov, Igor G., Ian R. Petersen y Matthew R. James. "A Girsanov Type Representation of Quadratic-Exponential Cost Functionals for Linear Quantum Stochastic Systems∗". En 2020 European Control Conference (ECC). IEEE, 2020. http://dx.doi.org/10.23919/ecc51009.2020.9143665.

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Charalambous, Charalambos D. y N. U. Ahmed. "Equivalence of decentralized stochastic dynamic decision systems via Girsanov's measure transformation". En 2014 IEEE 53rd Annual Conference on Decision and Control (CDC). IEEE, 2014. http://dx.doi.org/10.1109/cdc.2014.7039420.

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