Results 41 to 50 of about 84,599 (243)

Local statistics for random domino tilings of the Aztec diamond

open access: yes, 2000
We prove an asymptotic formula for the probability that, if one chooses a domino tiling of a large Aztec diamond at random according to the uniform distribution on such tilings, the tiling will contain a domino covering a given pair of adjacent lattice ...
Cohn, Henry, Elkies, Noam, Propp, James
core   +1 more source

On Estimates of Exponential Sums

open access: yes, 2005
This paper introduces a general technique for estimating the absolute value of pure Gaussian sums of order k over a prime p for a class of composite order k. The new estimate improves the classical estimate by a factor of about 2 or better (depending on k) for all sufficiently large primes p.
openaire   +2 more sources

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

open access: yesFEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Translation invariance, exponential sums, and Waring's problem [PDF]

open access: yes, 2014
We describe mean value estimates for exponential sums of degree exceeding 2 that approach those conjectured to be best possible. The vehicle for this recent progress is the efficient congruencing method, which iteratively exploits the translation ...
Wooley, Trevor D.
core   +1 more source

Newton polyhedra and estimates for exponential sums [PDF]

open access: yesBulletin of the Australian Mathematical Society, 1985
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Nuclear pore links Fob1‐dependent rDNA damage relocation to lifespan control

open access: yesFEBS Open Bio, EarlyView.
Damaged rDNA accumulates at a specific perinuclear interface that couples nucleolar escape with nuclear envelope association. Nuclear pores at this site help inhibit Fob1‐induced rDNA instability. This spatial organization of damage handling supports a functional link between nuclear architecture, rDNA stability, and replicative lifespan in yeast.
Yamato Okada   +5 more
wiley   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

open access: yesFEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei   +3 more
wiley   +1 more source

Single‐molecule DNA flow‐stretch assays for high‐throughput DNA–protein interaction studies

open access: yesFEBS Open Bio, EarlyView.
We describe an optimised single‐molecule DNA flow‐stretch assay that visualises DNA–protein interactions in real time. Linear DNA fragments are tethered to a surface and stretched by buffer flow for fluorescence imaging. Using λ and φX174 DNA, this protocol enhances reproducibility and accessibility, providing a versatile approach for studying diverse ...
Ayush Kumar Ganguli   +8 more
wiley   +1 more source

An additive problem in the Fourier coefficients of cusp forms

open access: yes, 2003
We establish an estimate on sums of shifted products of Fourier coefficients coming from holomorphic or Maass cusp forms of arbitrary level and nebentypus. These sums are analogous to the binary additive divisor sum which has been studied extensively. As
Harcos, Gergely
core   +1 more source

Estimates for complete multiple exponential sums [PDF]

open access: yesActa Arithmetica, 2000
Let \(f\) be a polynomial in \({\mathbb Z}[{\mathbf x}]\) in the \(n\) variables \({\mathbf x}=(x_1,\ldots,x_n)\) with integer coefficients and total degree \(d>1\). For a positive integer \(q\), define the complete exponential sum \[ S(f;q)=\sum_{{\mathbf x} \bmod q} e_q(f({\mathbf x})), \] where the sum is taken over a complete set of residues for \({
openaire   +1 more source

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