Results 21 to 30 of about 1,549 (180)
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
core +1 more source
Researches in MathematicsWe introduce a concept of a $\Lambda$-derivative operator, which is a certain generalization of hypersingular integral operators, which in turn are used in the definitions of the Marchaud and the Riesz fractional derivatives.
V. Babenko +3 more
doaj +1 more source
The Taikov type inequalities in rigged Hilbert spaces
Researches in MathematicsFor the chain $H_+\subset H_0\subset H_-$ of rigged Hilbert spaces we solve the problem of finding sharp Taikov type inequalities that estimate the value of generalized element $\alpha\in H_-$ on smooth elements $u\in H_+$ in terms of the norm of the ...
V. Babenko +3 more
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A goodness‐of‐fit test for regression models with discrete outcomes
Canadian Journal of Statistics, EarlyView.Abstract Regression models are often used to analyze discrete outcomes, but classical goodness‐of‐fit tests such as those based on the deviance or Pearson's statistic can be misleading or have little power in this context. To address this issue, we propose a new test, inspired by the work of Czado et al.
Lu Yang +2 more
wiley +1 more source
Inequalities of Kolmogorov type for fractional derivatives of multivariable functions
Researches in Mathematics, 2021 We prove new sharp inequality of Kolmogorov type that estimates the norm of mixed fractional Marchaud derivative of n-variable function by C-norm of this function and its norms in Lipschitz spaces.
V.F. Babenko, T.V. Matveeva
openaire +2 more sources
Ecography, EarlyView.Occurrence records are fundamental for ecological and evolutionary research, providing key information on species' geographic ranges. However, these records are often taxonomically, spatially, and temporally biased, requiring caution in their use. Here, we analysed the spatial coverage of occurrence records for over 3500 snake species worldwide to ...
Lívia Frateles +5 more
wiley +1 more source
Journal of Adolescence, EarlyView.ABSTRACT Introduction Socioeconomic status (SES) is a well‐established factor influencing adolescents’ mental health, as young people from disadvantaged backgrounds are more likely to experience stress, anxiety, and poorer overall wellbeing. One factor that may help protect students from these negative outcomes is school connectedness which is the ...
Esther Ariyo +2 more
wiley +1 more source
Exact Kolmogorov-Type Inequalities with Bounded Leading Derivative in the Case of Low Smoothness
, 2001 Одержано нові непокращувані нерівності типу Колмогорова для диференційовних періодичних функцій.We obtain new unimprovable Kolmogorov-type inequalities for differentiable periodic ...
Бабенко, В.Ф. +2 more
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Boyanov-Naydenov problem and Kolmogorov type inequalities for positive (negative) parts of functions
Researches in MathematicsWe prove that Boyanov-Naidenov problem $\|x^{(k)}_{\pm}\|_{q,\, \mu} \to \sup$ on classes of functions $\Omega^r_p(A_0, A_r):=\{x\in L^r_{\infty}: \|x^{(r)}\|_{\infty}\le A_r, L(x)_p\le A_0 \}$, where $k= 0,1,...,r-1$, $q \ge 1$ for $k\ge 1$, $q \ge p ...
V.A. Kofanov
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When Does Top Management Team Diversity Matter in Large Organizations?
Journal of Organizational Behavior, EarlyView.ABSTRACT Top management teams (TMTs) drive strategic leadership, but there is little clarity on when the composition of these upper echelons most impacts organization performance. Drawing from the categorization‐elaboration model, we study an 18‐year sample of approximately 4500 organizations and over 32 000 executives and find a positive relationship ...
Frances Fabian +2 more
wiley +1 more source