Results 71 to 80 of about 1,753,804 (330)

Uniform asymptotics for the tail probability of weighted sums with heavy tails [PDF]

open access: yes, 2014
This paper studies the tail probability of weighted sums of the form $\sum_{i=1}^n c_i X_i$, where random variables $X_i$'s are either independent or pairwise quasi-asymptotical independent with heavy tails.
Zhang, Chenhua
core   +2 more sources

Weighted short-interval character sums [PDF]

open access: yesProceedings of the American Mathematical Society, 2011
The starting point of this paper is the formula of \textit{J. Szmidt}, \textit{J. Urbanowicz} and \textit{D. Zagier} [Acta Arith. 71, No.
Kanemitsu, Shigeru   +2 more
openaire   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

Complete convergence for arrays of minimal order statistics

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2004
For arrays of independent Pareto random variables, this paper establishes complete convergence for weighted partial sums for the smaller order statistics within each row. This result improves on past strong laws.
André Adler
doaj   +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

Asymptotic Behavior of Weighted Sums of Weakly Negative Dependent Random Variables [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2008
Let be a sequence of weakly negative dependent (denoted by, WND) random variables with common distribution function F and let be other sequence of positive random variables independent of and for some and for all .
doaj  

On the weak law of large numbers for normed weighted sums of I.I.D. random variables

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1991
For weighted sums ∑j=1najYj of independent and identically distributed random variables {Yn,n≥1}, a general weak law of large numbers of the form (∑j=1najYj−νn)/bn→P0 is established where {νn,n≥1} and {bn,n≥1} are statable constants.
André Adler, Andrew Rosalsky
doaj   +1 more source

Weighted sums of orthogonal polynomials related to birth-death processes with killing [PDF]

open access: yes, 2012
We consider sequences of orthogonal polynomials arising in the analysis of birth-death processes with killing. Motivated by problems in this stochastic setting we discuss criteria for convergence of certain weighted sums of the ...
Doorn, Erik A. van
core   +4 more sources

Cell wall target fragment discovery using a low‐cost, minimal fragment library

open access: yesFEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan   +5 more
wiley   +1 more source

Stability for randomly weighted sums of random elements

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1999
Let {Xn:n=1,2,3,…} be a sequence of i.i.d. random elements taking values in a separable Banach space of type p and let {An,i:i=1,2,3,…;n=1,2,3,…} be an array of random variables.
Tien-Chung Hu, Hen-Chao Chang
doaj   +1 more source

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