Results 21 to 30 of about 323,983 (267)
Exact boundaries for the analytical approximate solution of a class of first-order nonlinear differential equations in the real domain [PDF]
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2021 The paper gives a solution to one of the problems of the analytical approximate method for one class first order nonlinear differential equations with moving singular points in the real domain.
Viktor N. Orlov, Oleg A. Kovalchuk
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Exact estimation of multiple directed acyclic graphs [PDF]
Statistics and Computing, 2015 This paper considers the problem of estimating the structure of multiple related directed acyclic graph (DAG) models. Building on recent developments in exact estimation of DAGs using integer linear programming (ILP), we present an ILP approach for joint estimation over multiple DAGs, that does not require that the vertices in each DAG share a common ...
Chris J. Oates +3 more
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Exact Asymptotic Stability Analysis and Region-of-Attraction Estimation for Nonlinear Systems
Abstract and Applied Analysis, 2013 We address the problem of asymptotic stability and region-of-attraction analysis of nonlinear dynamical systems. A hybrid symbolic-numeric method is presented to compute exact Lyapunov functions and exact estimates of regions of attraction of nonlinear ...
Min Wu, Zhengfeng Yang, Wang Lin
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Karpatsʹkì Matematičnì Publìkacìï, 2019 In this paper, we continue the study of approximative characteristics of the classes $B^{\Omega}_{p,\theta}$ of periodic functions of several variables whose majorant of the mixed moduli of continuity contains both exponential and logarithmic multipliers.
O.V. Fedunyk-Yaremchuk, S.B. Hembars'ka
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ON THE BIMODALITY OF THE EXACT DISTRIBUTION OF THE TSLS ESTIMATOR [PDF]
Econometric Theory, 2006 Nelson and Startz (Econometrica, 58, 1990), Maddala and Jong (Econometrica, 60, 1992) and Wolgrom (Econometrica, 69, 2001) have shown that the density of the two-stage least squares estimator may be bimodal in a just identified structural equation. This paper further investigates the conditions under which bimodality may arise in a just/over-identified
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Exact estimation for Markov chain equilibrium expectations [PDF]
Journal of Applied Probability, 2014 We introduce a new class of Monte Carlo methods, which we call exact estimation algorithms. Such algorithms provide unbiased estimators for equilibrium expectations associated with real-valued functionals defined on a Markov chain. We provide easily implemented algorithms for the class of positive Harris recurrent Markov chains, and for chains that are
Glynn, Peter W., Rhee, Chang-Han
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Order estimates for the exact Lugannani–Rice expansion [PDF]
Japan Journal of Industrial and Applied Mathematics, 2014 The Lugannani-Rice formula is a saddlepoint approximation method for estimating the tail probability distribution function, which was originally studied for the sum of independent identically distributed random variables. Because of its tractability, the formula is now widely used in practical financial engineering as an approximation formula for the ...
Takashi Kato +2 more
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Special Properties of Plane Solenoidal Fields
Mathematics, 2021 Algebraic and integral identities have been obtained for a pair or a triple of plane solenoidal fields. We obtain sufficient potentiality conditions for a plane vector field. The integral identities are also important for exact a priori estimates.
Vladimir I. Semenov
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Exact versus estimated pruning of subject hierarchies [PDF]
Proceedings of the American Society for Information Science and Technology, 2013 AbstractMany large digital collections are organized by subject; these useful information organization structures are large and complex, thus difficult to browse. Current online tools and visualization prototypes show small localized subsets and do not provide the ability to explore the predominant patterns of the overall subject structure.
Julien, Charles-Antoine, Tirilly, Pierre
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Exact Computation of Maximum Rank Correlation Estimator [PDF]
SSRN Electronic Journal, 2021 SummaryIn this paper we provide a computation algorithm to get a global solution for the maximum rank correlation estimator using the mixed integer programming (MIP) approach. We construct a new constrained optimization problem by transforming all indicator functions into binary parameters to be estimated and show that it is equivalent to the original ...
Shin, Youngki, Todorov, Zvezdomir
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