Results 51 to 60 of about 1,424,186 (337)

Extended Wang sum and associated products.

open access: yesPLoS ONE, 2022
The Wang sum involving the exponential sums of Lerch's Zeta functions is extended to the finite sum of the Huwitz-Lerch Zeta function to derive sums and products involving cosine and tangent trigonometric functions.
Robert Reynolds, Allan Stauffer
doaj   +1 more source

Restricted divisor sums

open access: yes, 2002
There is a body of work in the literature on various restricted sums of the number of divisors of an integer function including that described in [2-9, 11] and summarised in Section 2 ...
Broughan, Kevin A.
core   +1 more source

Record Ranges for Samples From Asymmetrical Laplace Distributions

open access: yesJournal of Statistical Theory and Applications (JSTA), 2018
The representations of record ranges via sums of independent identically distributed exponential random variables are obtained for asymmetrical Laplace distributions.
I.V. BELKOV   +2 more
doaj   +1 more source

Exponential sums on A n . III

open access: yesmanuscripta mathematica, 2000
24 pp ...
Adolphson, Alan, Sperber, Steven
openaire   +3 more sources

On the two-term exponential sums and character sums of polynomials

open access: yesOpen Mathematics, 2019
The main aim of this paper is to use the analytic methods and the properties of the classical Gauss sums to research the computational problem of one kind hybrid power mean containing the character sums of polynomials and two-term exponential sums modulo
Ma Yuankui, Zhang Wenpeng
doaj   +1 more source

Picturesque exponential sums. II:

open access: yesJournal für die reine und angewandte Mathematik (Crelles Journal), 1979
Let k be a fixed positive integer ⩾2 and let ζ = exp(2πi/k). For any integer n ⩾0 we define b(n) to be the sum of the digits of n when written to the base k.
Lehmer, D.H., Lehmer, Emma
openaire   +1 more source

Tail bounds for sums of geometric and exponential variables [PDF]

open access: yes, 2017
We give explicit bounds for the tail probabilities for sums of independent geometric or exponential variables, possibly with different parameters.
S. Janson
semanticscholar   +1 more source

Minor arcs, mean values, and restriction theory for exponential sums over smooth numbers [PDF]

open access: yesCompositio Mathematica, 2014
We investigate exponential sums over those numbers ${\leqslant}x$ all of whose prime factors are ${\leqslant}y$. We prove fairly good minor arc estimates, valid whenever $\log ^{3}x\leqslant y\leqslant x^{1/3}$.
Adam J. Harper
semanticscholar   +1 more source

Decoupling, exponential sums and the Riemann zeta function [PDF]

open access: yes, 2014
We establish a new decoupling inequality for curves in the spirit of [B-D1], [B-D2] which implies a new mean value theorem for certain exponential sums crucial to the Bombieri-Iwaniec method as developed further in [H].
J. Bourgain
semanticscholar   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

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