Results 11 to 20 of about 886 (94)

K4$K_4$‐free graphs have sparse halves

Bulletin of the London Mathematical Society, Volume 55, Issue 3, Page 1178-1195, June 2023., 2023
Abstract Every K4$K_4$‐free graph on n$n$ vertices has a set of ⌊n/2⌋$\lfloor n/2\rfloor$ vertices spanning at most n2/18$n^2/18$ edges.
Christian Reiher
wiley   +1 more source

Regular Turán numbers and some Gan–Loh–Sudakov‐type problems

Journal of Graph Theory, Volume 102, Issue 1, Page 67-85, January 2023., 2023
Abstract Motivated by a Gan–Loh–Sudakov‐type problem, we introduce the regular Turán numbers, a natural variation on the classical Turán numbers where we restrict ourselves to the class of regular graphs. Among other results, we prove a striking supersaturation version of Mantel's theorem in the case of a regular host graph of odd order.
Stijn Cambie, Rémi de Joannis de Verclos, Ross J. Kang   +2 more
wiley   +1 more source

Asymptotic tail properties of Poisson mixture distributions

Stat, Volume 12, Issue 1, January/December 2023., 2023
Summary Count data are omnipresent in many applied fields, often with overdispersion. With mixtures of Poisson distributions representing an elegant and appealing modelling strategy, we focus here on how the tail behaviour of the mixing distribution is related to the tail of the resulting Poisson mixture.
Samuel Valiquette, Gwladys Toulemonde, Jean Peyhardi, Éric Marchand, Frédéric Mortier   +4 more
wiley   +1 more source

Copula measures and Sklar's theorem in arbitrary dimensions

Scandinavian Journal of Statistics, Volume 49, Issue 3, Page 1144-1183, September 2022., 2022
Abstract Although copulas are used and defined for various infinite‐dimensional objects (e.g., Gaussian processes and Markov processes), there is no prevalent notion of a copula that unifies these concepts. We propose a unified functional analytic framework, show how Sklar's theorem can be applied in certain examples of Banach spaces and provide a ...
Fred Espen Benth, Giulia Di Nunno, Dennis Schroers   +2 more
wiley   +1 more source

Characterization of microbial intolerances and ruminal dysbiosis towards different dietary carbohydrate sources using an in vitro model

Journal of Applied Microbiology, Volume 133, Issue 2, Page 458-476, August 2022., 2022
Abstract Aim This study aimed to characterize the critical points for determining the development of dysbiosis associated with feed intolerances and ruminal acidosis. Methods and Results A metabologenomics approach was used to characterize dynamic microbial and metabolomics shifts using the rumen simulation technique (RUSITEC) by feeding native ...
Parisa Kheirandish, Renee Maxine Petri, Arife Sener‐Aydemir, Heidi Elisabeth Schwartz‐Zimmermann, Franz Berthiller, Qendrim Zebeli, Cátia Pacífico   +6 more
wiley   +1 more source

Brand Awareness via Online Media: An Evidence Using Instagram Medium with Statistical Analysis

Computational Intelligence and Neuroscience, Volume 2022, Issue 1, 2022., 2022
Online marketing refers to the practices of promoting a company’s brand to its potential customers. It helps the companies to find new venues and trade worldwide. Numerous online media such as Facebook, YouTube, Twitter, and Instagram are available for marketing to promote and sell a company’s product.
Mi Yantian, Zubair Ahmad, Ibrahim Alkhairy, Hassan Alsuhabi, Morad Alizadeh, M. R. Mouhamed, Ahmed Mostafa Khalil   +6 more
wiley   +1 more source

For Most Frequencies, Strong Trapping Has a Weak Effect in Frequency‐Domain Scattering

Communications on Pure and Applied Mathematics, Volume 74, Issue 10, Page 2025-2063, October 2021., 2021
It is well‐known that when the geometry and/or coefficients allow stable trapped rays, the outgoing solution operator of the Helmholtz equation grows exponentially through a sequence of real frequencies tending to infinity. In this paper we show that, even in the presence of the strongest possible trapping, if a set of frequencies of arbitrarily small ...
David Lafontaine, Euan A. Spence, Jared Wunsch   +2 more
wiley   +1 more source

The Role of Twitter Medium in Business with Regression Analysis and Statistical Modelling

Computational Intelligence and Neuroscience, Volume 2021, Issue 1, 2021., 2021
Marketing refers to the strategies a company undertakes to promote its brands to its potential audience. Advertising provides useful venues for marketing to promote a company’s survives/goods to the audience. It has a positive impact on the sale of services or products.
Jia Cong, Zubair Ahmad, Basim S.O. Alsaedi, Osama Abdulaziz Alamri, Ibrahim Alkhairy, Hassan Alsuhabi, Ahmed Mostafa Khalil   +6 more
wiley   +1 more source

Impact of Facebook and Newspaper Advertising on Sales: A Comparative Study of Online and Print Media

Computational Intelligence and Neuroscience, Volume 2021, Issue 1, 2021., 2021
Marketing means the strategies and tactics an organization undertakes for attracting consumers to promote the buying or selling of a product or service. Active marketing is about receiving messages from potential buyers to create ways to influence their purchasing decisions.
Yushan Lin, Zubair Ahmad, Wasswa Shafik, Saima K. Khosa, Zahra Almaspoor, Hassan Alsuhabi, Faheem Abbas, Wei Xiang   +7 more
wiley   +1 more source

Combined Effects in Singular Elliptic Problems in Punctured Domain

Journal of Function Spaces, Volume 2021, Issue 1, 2021., 2021
The paper deals with nonlinear elliptic differential equations subject to some boundary value conditions in a regular bounded punctured domain. By means of properties of slowly regularly varying functions at zero and the Schauder fixed‐point theorem, we establish the existence of a positive continuous solution for the suggested problem.
Imed Bachar, Habib Mâagli, Hassan Eltayeb, Stanislav Hencl   +3 more
wiley   +1 more source