Results 11 to 20 of about 276 (106)
AxiomsIn this paper, we generalize an inequality for a convex function in one dimension R1 on three intervals to a function with nondecreasing increments in k dimensions Rk on (2n+1) intervals.
Ðilda Pečarić +2 more
doaj +2 more sources
Schauder estimates, Harnack inequality and Gaussian lower bound for Kolmogorov type operators in non-divergence form [PDF]
, 2006 We prove some Schauder type estimates and an invariant Harnack inequality for a class of degenerate evolution operators of Kolmogorov type. We also prove a Gaussian lower bound for the fundamental solution of the operator and a uniqueness result for ...
Polidoro, Sergio +2 more
core +1 more source
On a problem of optimal recovery and Kolmogorov type inequalities on an interval
, 2020 We consider an optimal recovery problem for the k-th derivative of the function on an interval from the information on the function itself, given in the mean square metric.
Bagramyan T.E.
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Some Results on Bellman Equations of Optimal Production Control in a Stochastic Manufacturing System
Journal of Probability and Statistics, Volume 2009, Issue 1, 2009., 2009 The paper studies the production inventory problem of minimizing the expected discounted present value of production cost control in a manufacturing system with degenerate stochastic demand. We establish the existence of a unique solution of the Hamilton‐Jacobi‐Bellman (HJB) equations associated with this problem.
Azizul Baten +2 more
wiley +1 more source
A Stochastic Cobweb Dynamical Model
Discrete Dynamics in Nature and Society, Volume 2008, Issue 1, 2008., 2008 We consider the dynamics of a stochastic cobweb model with linear demand and a backward‐bending supply curve. In our model, forward‐looking expectations and backward‐looking ones are assumed, in fact we assume that the representative agent chooses the backward predictor with probability q_, __0_q_1, and the forward predictor with probability (1 − q ...
Serena Brianzoni +4 more
wiley +1 more source
Some Inequalities for Functions of Bounded Variation with Applications to Landau Type Results
, 2006 Some inequalities for functions of bounded variation that provide reverses for the inequality between the integral mean and the p−norm for p Є [1,∞] are established.
Dragomir, Sever S, S.S. Dragomir
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The case of equality in Landau′s problem
International Journal of Mathematics and Mathematical Sciences, Volume 2005, Issue 11, Page 1781-1793, 2005., 2005 Kolmogorov (1949) determined the best possible constant Kn,m for the inequality Mm(f)≤Kn,mM0(n−m)/n(f)Mnm/n(f), 0
G. W. Hagerty, P. Nag
wiley +1 more source
Robust a priori and a posteriori error analysis for the approximation of Allen–Cahn and Ginzburg–Landau equations past topological changes [PDF]
, 2010 A priori and a posteriori error estimates are derived for the numerical approximation of scalar and complex valued phase field models. Particular attention is devoted to the dependence of the estimates on a small parameter and to the validity of the ...
Rüdiger Müller +11 more
core +1 more source
Fractional Landau Inequalities of Riemann–Liouville Type
, 2021 We present uniform Riemann–Liouville left and right fractional Landau inequalities over R+ and R-, respectively, of fractional orders 1 \u3c ν\u3c 2 and 2 \u3c ν\u3c 3 and we estimate lower order fractional derivatives.
Anastassiou, George A. +1 more
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Physics of Ferroelectric Wurtzite Al1−xScxN Thin Films
Advanced Electronic Materials, Volume 11, Issue 2, February 2025.This review highlights Al1−xScxN as a groundbreaking wurtzite ferroelectric with exceptional properties, including large polarization, tunable coercive field, outstanding thermal stability, and compatibility with CMOS/III‐N technologies. It explores the origins of its ferroelectricity, phase stability, and control mechanisms, discusses challenges such ...
Feng Yang
wiley +1 more source