Results 71 to 80 of about 55,236 (313)

Is the binomial coefficient $2n \choose n$ square free?

open access: yes, 1995
In this paper, we prove the Erd\"os conjecture that the binomial coefficient ${2n \choose n}$ is never square free, for all $n>4$
Velammal, G
core   +1 more source

Construction and Analysis of Binomial Coefficients

open access: yes, 2022
This paper discusses the construction and analysis of the binomial coefficients for combinatorial geometric series. The coefficient for each term in combinatorial geometric series refers to a binomial coefficient.
Chinnaraji Annamalai
core   +1 more source

Biolipid Film‐Fused Electrochemiluminescence for Multipurpose In Situ Bioassays

open access: yesAdvanced Science, EarlyView.
An ECL‐emissive, membrane‐interactive scaffold was fabricated, and facilely fused with natural and non‐native phospholipids into multifactorial mimicries of cytomembranes and vesicles for in vitro representative membrane‐process probing. Such a biointerface‐based, state‐sensitive ECL paradigm not only pinpointed proximal phenomena, including channeling
Jialiang Chen   +9 more
wiley   +1 more source

Sum of Series of Binomial Coefficients

open access: yes, 2022
This paper presents a summation of series of binomial coefficients in combinatorial geometric series. The coefficient for each term in combinatorial geometric series refers to a binomial coefficient.
Chinnaraji Annamalai
core   +1 more source

Temporal Interference Stimulation Enhances Neural Regeneration

open access: yesAdvanced Science, EarlyView.
Temporal interference (TI) stimulation is proposed as a non‐invasive approach to enhance neural regeneration in the deep brain. Theta‐band TI modulation selectively promotes neural progenitor cell differentiation in vitro and augments hippocampal neurogenesis in amouse model of Alzheimer's disease‐like amyloidosis.
Sofia Peressotti   +15 more
wiley   +1 more source

Estimates of the least prime factor of a binomial coefficient

open access: yes, 1993
We estimate the least prime factor p of the binomial coefficient ( k N ) \left ( {_k^N} \right ) for k ≥ 2 k \geq 2
C. B. Lacampagne   +2 more
core   +1 more source

SpaMode: A Broadly Applicable Framework for Deciphering Spatial Multi‐Omics Using Multimodal Mixture of Disentangled Experts

open access: yesAdvanced Science, EarlyView.
SpaMode introduces a versatile framework for spatial multi‐omics integration across vertical, horizontal, and mosaic scenarios. By disentangling modality‐invariant and variant features through a mixture‐of‐experts mechanism, it adaptively reconfigures spatially heterogeneous signals.
Xubin Zheng   +6 more
wiley   +1 more source

A Note on Extended Binomial Coefficients

open access: yesJ. Integer Seq., 2014
We study the distribution of the extended binomial coefficients by deriving a complete asymptotic expansion with uniform error terms. We obtain the expansion from a local central limit theorem and we state all coefficients explicitly as sums of Hermite polynomials and Bernoulli numbers.
openaire   +6 more sources

Some divisibility properties of binomial and q -binomial coefficients

open access: yesJournal of Number Theory, 2014
We first prove that if $a$ has a prime factor not dividing $b$ then there are infinitely many positive integers $n$ such that $\binom {an+bn} {an}$ is not divisible by $bn+1$. This confirms a recent conjecture of Z.-W. Sun. Moreover, we provide some new divisibility properties of binomial coefficients: for example, we prove that $\binom {12n} {3n}$ and
Krattenthaler, Christian   +1 more
openaire   +4 more sources

Theorems based on Annamalai’s Binomial Coefficient and Identity

open access: yes, 2022
This paper presents a binomial theorem and proof based on Annamalai’s binomial identity. The factorial function defined for non-negative integers, denoted by n!, is the product of all positive integers less than or equal to n.
Chinnaraji Annamalai
core   +1 more source

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