Results 21 to 30 of about 257,797 (288)

Correlations of multiplicative functions in function fields

open access: yesMathematika, 2022
AbstractWe develop an approach to study character sums, weighted by a multiplicative function , of the formwhere χ is a Dirichlet character and ξ is a short interval character over . We then deduce versions of the Matomäki–Radziwiłł theorem and Tao's two‐point logarithmic Elliott conjecture over function fields , whereqis fixed.
Klurman, Oleksiy   +2 more
openaire   +4 more sources

Some characterizations of specially multiplicative functions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2003
A multiplicative function f is said to be specially multiplicative if there is a completely multiplicative function fA such that f(m)f(n)=∑d|(m,n)f(mn/d2)fA(d) for all m and n.
Pentti Haukkanen
doaj   +1 more source

An equation involving the F.Smarandache multiplicative function [PDF]

open access: yes, 2007
The main purpose of this paper is using the elementary methods to study the solutions of an equation involving the F.Smarandache multiplicative function, and give its all positive integer ...
Chen, Jianbin
core   +2 more sources

Solutions and Stability of Generalized Kannappan’s and Van Vleck’s Functional Equations

open access: yesAnnales Mathematicae Silesianae, 2018
We study the solutions of the integral Kannappan’s and Van Vleck’s functional equations ∫Sf(xyt)dµ(t)+∫Sf(xσ(y)t)dµ(t)= 2f(x)f(y), x,y ∈ S; ∫Sf(xσ(y)t)dµ(t)-∫Sf(xyt)dµ(t)= 2f(x)f(y), x,y ∈ S; where S is a semigroup, σ is an involutive automorphism of S ...
Elqorachi Elhoucien, Redouani Ahmed
doaj   +1 more source

Majorisation with applications to the calculus of variations [PDF]

open access: yes, 2001
This paper explores some connections between rank one convexity, multiplicative quasiconvexity and Schur convexity. Theorem 5.1 gives simple necessary and sufficient conditions for an isotropic objective function to be rank one convex on the set of ...
Baker   +20 more
core   +2 more sources

WNTs: Multiple Genes, Multiple Functions [PDF]

open access: yesJournal of Investigative Dermatology, 2003
The development of ectodermal appendages such as hair, feathers and teeth has long fascinated biologists, who have attempted to understand how cells of different types interact with each other to induce the coordinated changes in cell shape, proliferation, adhesion and movement required for the formation of these intricate three-dimensional structures.
openaire   +3 more sources

On the Complexity of Computing Two Nonlinearity Measures [PDF]

open access: yes, 2014
We study the computational complexity of two Boolean nonlinearity measures: the nonlinearity and the multiplicative complexity. We show that if one-way functions exist, no algorithm can compute the multiplicative complexity in time $2^{O(n)}$ given the ...
A.A. Razborov   +10 more
core   +1 more source

Some characterizations of totients

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1996
An arithmetical function is said to be a totient if it is the Dirichlet convolution between a completely multiplicative function and the inverse of a completely multiplicative function. Euler's phi-function is a famous example of a totient.
Pentti Haukkanen
doaj   +1 more source

On Schur multiple zeta functions: A combinatoric generalization of multiple zeta functions [PDF]

open access: yesAdvances in Mathematics, 2018
We introduce Schur multiple zeta functions which interpolate both the multiple zeta and multiple zeta-star functions of the Euler-Zagier type combinatorially. We first study their basic properties including a region of absolute convergence and the case where all variables are the same.
Nakasuji, M.   +2 more
openaire   +4 more sources

Hermite–Hadamard type inequalities for multiplicatively harmonic convex functions

open access: yesJournal of Inequalities and Applications, 2023
In this work, the notion of a multiplicative harmonic convex function is examined, and Hermite–Hadamard inequalities for this class of functions are established.
Serap Özcan, Saad Ihsan Butt
doaj   +1 more source

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