Results 71 to 80 of about 801 (162)

Approximation properties for modified $(p,q)$-Bernstein-Durrmeyer operators [PDF]

, 2017
summary:We introduce modified $(p,q)$-Bernstein-Durrmeyer operators. We discuss approximation properties for these operators based on Korovkin type approximation theorem and compute the order of convergence using usual modulus of continuity.
Alabied, Ahmed A. H., Mursaleen, Mohammad   +1 more
core   +1 more source

‘You fine an industry, then return the funding to them’: State‐facilitated corporate crime and Colorado's Suncor Oil Refinery

Sociological Forum, Volume 40, Issue 2, Page 166-181, June 2025.
Abstract In Commerce City, Colorado, residents contend with multiple environmental hazards and live in the most polluted zip code in the US. Perhaps no source of environmental harm is more visible than the imposing, aging Suncor Oil Refinery. The refinery dominates entire city blocks and residents' daily lives.
Stephanie A. Malin, India Luxton, Ramona Beltrán, Emilia Ravetta, Kristina Hulama   +4 more
wiley   +1 more source

The Adaptive Backstepping Synchronization Control for a Kind of Variable-Order Fractional Uncertain Nonlinear Systems

Fractal and Fractional
This paper is concerned with the adaptive backstepping synchronization control for a class of variable-order (VO) fractional uncertain nonlinear system with external disturbances and a dead zone. A kind of VO fractional command filter is employed to cope
Xinyu Si, Kangkang Zhang, Jingfei Jiang, Juan L. G. Guirao, Hongkui Li   +4 more
doaj   +1 more source

No Evidence for Male Retaliation in a Population With High Level of Extra‐Pair Paternity

Ecology and Evolution, Volume 15, Issue 5, May 2025.
In an experimental study, we investigated the relationship between within‐pair paternity of the males and their feeding rates in a monogamous passerine with a high rate of infidelity to reveal whether males recognise and penalise the unfaithfulness of their social partners. Our results contradict those previously found in another population of the same
Helga Gyarmathy, Renáta Kopena, Tünde Kneifel, Fanni Sarkadi, Eszter Szöllősi, Eszter Szász, János Török, Balázs Rosivall   +7 more
wiley   +1 more source

Approximation results on Dunkl generalization of Phillips operators via q-calculus

Advances in Difference Equations, 2019
The main purpose of this paper is to construct q-Phillips operators generated by Dunkl generalization. We prove several results of Korovkin type and estimate the order of convergence in terms of several moduli of continuity.
Md. Nasiruzzaman, Aiman Mukheimer, M. Mursaleen   +2 more
doaj   +1 more source

Weighted Approximation by Szász–Mirakyan–Durrmeyer Operators Reproducing Exponential Functions

Mathematics
We examine a Szász–Mirakyan–Durrmeyer type operator that reproduces the functions 1 and e2ax for a fixed parameter a>0. While its exponential reproduction property has been described in the classical literature, the effect of exponential weights on its ...
Gülsüm Ulusoy Ada, Ali Aral
doaj   +1 more source

Curves defined by a class of discrete operators: approximation result and applications [PDF]

In approximation theory classical discrete operators, like generalized sampling, Sz\'{a}sz-Mirak'jan, Baskakov and Bernstein operators, have been extensively studied for scalar functions.
Corso, Rosario, Gucciardi, Gabriele
core   +3 more sources

Statistical convergence of integral form of modified Szász–Mirakyan operators: an algorithm and an approach for possible applications

Journal of Inequalities and Applications
In this study, we take into account the of modified Szász–Mirakyan–Kantorovich operators to obtain their rate of convergence using the modulus of continuity and for the functions in Lipschitz space.
Neha Bhardwaj, Rashmi Singh, Aryan Chaudhary, Achyut Shankar, Rahul Kumar   +4 more
doaj   +1 more source

Diffusive and Super-Diffusive Limits for Random Walks and Diffusions with Long Memory

, 2018
We survey recent results of normal and anomalous diffusion of two types of random motions with long memory in ${\Bbb R}^d$ or ${\Bbb Z}^d$. The first class consists of random walks on ${\Bbb Z}^d$ in divergence-free random drift field, modelling the ...
Tóth, Bálint
core  

Real-time density-matrix coupled-cluster approach for closed and open systems at finite temperature [PDF]

, 2019
We extend the coupled-cluster method to correlated quantum dynamics of both closed and open systems at finite temperatures using the thermofield formalism.
Miller, Thomas F., III, Shushkov, Philip
core   +1 more source