Search Results - "Kubilius, Kęstutis"
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1
The Implicit Euler Scheme for FSDEs with Stochastic Forcing: Existence and Uniqueness of the Solution
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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2
Estimation of the Hurst index of the solutions of fractional SDE with locally Lipschitz drift
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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3
A Class of Fractional Stochastic Differential Equations with a Soft Wall
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
From Constant to Rough: A Survey of Continuous Volatility Modeling
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
Positive Solutions of the Fractional SDEs with Non-Lipschitz Diffusion Coefficient
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
Pathwise Convergent Approximation for the Fractional SDEs
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
On comparison of the estimators of the Hurst index and the diffusion coefficient of the fractional Gompertz diffusion process
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
The rate of convergence of the Hurst index estimate for a stochastic differential equation
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
Fractional SDEs with stochastic forcing: Existence, uniqueness, and approximation
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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10
On approximation of stochastic integrals with respect to a fractional Brownian motion
Published in Lietuvos matematikos rinkinys (18-12-2005)“…There is not abstract…”
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11
An approximation of the solution of Stratanovich integral equation driven by a continuous p-semimartingale
Published in Lietuvos matematikos rinkinys (17-12-2004)“…There is not abstract…”
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12
Estimating the Hurst index of the solution of a stochastic integral equation
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
On weak convergence of an approximation of a fractional Brownian motion
Published in Lietuvos matematikos rinkinys (22-12-2003)“…There is not abstract…”
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14
On estimation of the Hurst index of solutions of stochastic integral equations
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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15
On weak solutions of Stratonovich integral equation driven by a continuous p-semimartingales
Published in Lietuvos matematikos rinkinys (20-12-2002)“…There is not abstract…”
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16
On approximation of stochastic integral equations driven by continuous p-semimartingales
Published in Lietuvos matematikos rinkinys (17-12-2001)“…There is not abstract…”
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17
Exact Confidence Intervals of the Extended Orey Index for Gaussian Processes
Published in Methodology and computing in applied probability (01-09-2016)“…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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18
The existence and uniqueness of the solution of the integral equation driven by fractional Brownian motion
Published in Lietuvos matematikos rinkinys (18-12-2000)“…There is not abstract…”
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19
The existence and uniqueness of the solution of the integral equation driven by a bounded p-variation function
Published in Lietuvos matematikos rinkinys (17-12-1999)“…There is not abstract…”
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20
Consistency of the drift parameter estimator for the discretized fractional Ornstein–Uhlenbeck process with Hurst index $H\in(0,\frac{1}{2})
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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