Search Results - "Kubilius, Kęstutis"

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  1. 1

    The Implicit Euler Scheme for FSDEs with Stochastic Forcing: Existence and Uniqueness of the Solution by Kubilius, Kęstutis

    Published in Mathematics (Basel) (01-08-2024)
    “…In this paper, we focus on fractional stochastic differential equations (FSDEs) with a stochastic forcing term, i.e., to FSDE, we add a stochastic forcing…”
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    Journal Article
  2. 2

    Estimation of the Hurst index of the solutions of fractional SDE with locally Lipschitz drift by Kubilius, Kęstutis

    Published in Nonlinear analysis (Vilnius, Lithuania) (01-11-2020)
    “…Strongly consistent and asymptotically normal estimates of the Hurst index H are obtained for stochastic differential equations (SDEs) that have a unique…”
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    Journal Article
  3. 3

    A Class of Fractional Stochastic Differential Equations with a Soft Wall by Kubilius, Kęstutis, Medžiūnas, Aidas

    Published in Fractal and fractional (01-01-2023)
    “…In this paper we are interested in fractional stochactic differential equations (SDEs) with a soft wall. What do we mean by such a type of equation? It has…”
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  4. 4

    From Constant to Rough: A Survey of Continuous Volatility Modeling by Di Nunno, Giulia, Kubilius, Kęstutis, Mishura, Yuliya, Yurchenko-Tytarenko, Anton

    Published in Mathematics (Basel) (01-10-2023)
    “…In this paper, we present a comprehensive survey of continuous stochastic volatility models, discussing their historical development and the key stylized facts…”
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  5. 5

    Positive Solutions of the Fractional SDEs with Non-Lipschitz Diffusion Coefficient by Kubilius, Kęstutis, Medžiūnas, Aidas

    Published in Mathematics (Basel) (01-01-2021)
    “…We study a class of fractional stochastic differential equations (FSDEs) with coefficients that may not satisfy the linear growth condition and non-Lipschitz…”
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  6. 6

    Pathwise Convergent Approximation for the Fractional SDEs by Kubilius, Kęstutis, Medžiūnas, Aidas

    Published in Mathematics (Basel) (01-02-2022)
    “…Fractional stochastic differential equation (FSDE)-based random processes are used in a wide spectrum of scientific disciplines. However, in the majority of…”
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  7. 7

    On comparison of the estimators of the Hurst index and the diffusion coefficient of the fractional Gompertz diffusion process by Kęstutis Kubilius, Dmitrij Melichov

    Published in Nonlinear analysis (Vilnius, Lithuania) (25-11-2016)
    “…We study some estimators of the Hurst index and the diffusion coefficient of the fractional Gompertz diffusion process and prove that they are strongly…”
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  8. 8

    The rate of convergence of the Hurst index estimate for a stochastic differential equation by Kubilius, Kęstutis, Skorniakov, Viktor, Ralchenko, Kostiantyn

    Published in Nonlinear analysis (Vilnius, Lithuania) (01-01-2017)
    “…We consider an estimator of the Hurst parameter of stochastic differential equation with respect to a fractional Brownian motion and establish the rate of…”
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  9. 9

    Fractional SDEs with stochastic forcing: Existence, uniqueness, and approximation by Kubilius, Kęstutis

    Published in Nonlinear analysis (Vilnius, Lithuania) (01-11-2023)
    “…In this article, we are interested in fractional stochastic differential equations (FSDEs) with stochastic forcing, i.e., to FSDE we add a stochastic forcing…”
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    Estimating the Hurst index of the solution of a stochastic integral equation by Kęstutis Kubilius, Dmitrij Melichov

    Published in Lietuvos matematikos rinkinys (20-12-2009)
    “…Let X(t) be a solution of a stochastic integral equation driven by fractional Brownian motion BH and let V2n (X, 2) = \sumn-1 k=1(\delta k2X)2 be the second…”
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  13. 13
  14. 14

    On estimation of the Hurst index of solutions of stochastic integral equations by Kęstutis Kubilius, Dmitrij Melichov

    Published in Lietuvos matematikos rinkinys (21-12-2008)
    “…Let X be a solution of a stochasti Let X be a solution of a stochastic integral equation driven by a fractional Brownian motion BH and let Vn(X, 2) = \sumn…”
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    Exact Confidence Intervals of the Extended Orey Index for Gaussian Processes by Kubilius, Kęstutis, Melichov, Dmitrij

    “…In this paper exact confidence intervals for the Orey index of Gaussian processes are obtained using concentration inequalities for Gaussian quadratic forms…”
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    Consistency of the drift parameter estimator for the discretized fractional Ornstein–Uhlenbeck process with Hurst index $H\in(0,\frac{1}{2}) by Kubilius, Kęstutis, Mishura, Yuliya, Ralchenko, Kostiantyn, Seleznjev, Oleg

    Published in Electronic journal of statistics (2015)
    “…parameter θ and where the noise is modeled as fractional Brownian motionwith Hurst index H ∈ (0, 12 ). The solution corresponds to the…”
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