Results 71 to 80 of about 1,549 (180)

On essentially conditional information inequalities

open access: yes, 2011
International audienceIn 1997, Z. Zhang and R.W. Yeung found the first example of a conditional information inequality in four variables that is not "Shannon-type". This linear inequality for entropies is called conditional (or constraint) since it holds
Tarik Kaced   +3 more
core   +1 more source

Harnack inequality and no-arbitrage bounds for self-financing portfolios

open access: yes
We give a direct proof of the Harnack inequality for a class of Kolmogorov operators associated with a linear SDE and we find the explicit expression of the optimal Harnack constant.
Polidoro, Sergio   +2 more
core  

On inequalities of Kolmogorov type for the functions being analytic in the unit bicircle

open access: yesResearches in Mathematics, 2013
The sharp inequality of Kolmogorov type has been obtained in the space $\mathfrak{B}(U_2)$ for functions of two complex variables analytic in the unit bicircle.
S.B. Vakarchuk, M.B. Vakarchuk
openaire   +2 more sources

Inégalités de Hardy multipolaires pondérées dans R^N et opérateurs de type Kolmogorov

open access: yes, 2019
The main purpose of the thesis, which describes the topics I was involved and the results achieved so far, is to introduce the multipolar weighted Hardy inequalities in R^N in the context of the study of Kolmogorov type operators perturbed by singular ...
Pappalardo, Francesco
core  

Kolmogorov-Type Inequalities for Periodic Functions Whose First Derivatives Have Bounded Variation

open access: yes, 2002
Одержано нову непокращувану нерівність типу Колмогорова для дифереиційовних 2π-періодичyих функцій х, що мають обмежену варіацію похідної x'.We obtain a new unimprovable Kolmogorov-type inequality for differentiable 2π-periodic functions x with bounded ...
Пигучов, С.А.   +2 more
core  

A structure theorem for elliptic and parabolic operators with applications to  homogenization of operators of Kolmogorov type

open access: yes, 2023
We consider the operators                  \begin{eqnarray*}    \nabla_X\cdot(A(X)\nabla_X),\  \nabla_X\cdot(A(X)\nabla_X)-\partial_t,\ \nabla_X\cdot(A(X)\nabla_X)+X\cdot\nabla_Y-\partial_t,    \end{eqnarray*}    where $X\in \Omega$, $(X,t)\in \Omega ...
Litsgård, Malte,, Nyström, Kaj,
core  

Poster Sessions

open access: yes
HemaSphere, Volume 10, Issue S1, June 2026.
wiley   +1 more source

Landau-Kolmogorov problem for a class of functions absolutely monotone on a finite interval

open access: yes, 2011
Розв’язано задачу Ландау – Колмогорова для класу абсолютно монотонних на скiнченному вiдрiзку функцiй. Для такого класу функцiй також отримано новi точнi адитивнi нерiвностi типу Колмогоров.We solve the Landau - Kolmogorov problem for the class of ...
Скороходов, Д.С.
core  

Inference Based on Conditional Moment Inequalities [PDF]

open access: yes
In this paper, we propose an instrumental variable approach to constructing confidence sets (CS's) for the true parameter in models defined by conditional moment inequalities/equalities.
Xiaoxia Shi, Donald W.K. Andrews
core   +2 more sources

Inégalités de Landau-Kolmogorov dans des espaces de Sobolev

open access: yes, 2012
Ce travail est dédié à l étude des inégalités de type Landau-Kolmogorov en normes L2. Les mesures utilisées sont celles d Hermite, de Laguerre-Sonin et de Jacobi. Ces inégalités sont obtenues en utilisant une méthode variationnelle. Elles font intervenir
ABBAS, Lamia, DRAUX, André
core   +1 more source

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