Results 81 to 90 of about 6,215,042 (159)
Fine‐tuning ab initio XANES spectra calculations using the Bayesian optimization algorithm
Journal of Synchrotron Radiation, Volume 33, Issue 5, Page 1455-1466, September 2026.A Bayesian optimization technique is used to tune the FEFF and FDMNES packages and to improve matching between theoretical and experimental spectra. The tests were performed on monometallic Ni, Fe and Pd K‐edge XANES spectra using several different spectrum similarity metrics.Theoretical modeling of X‐ray absorption near‐edge structure (XANES) spectra ...
Andrey A. Sapronov +2 more
wiley +1 more source
Asymptotic results for a generalized Pòlya urn with delay and an applications to clinical trials [PDF]
In this paper a new Pòlya urn model is introduced and studied; in particular, a strong law of large numbers and two central limit theorems are proven. This urn generalizes a model studied in Berti et al. (2004), May et al.
Irene Crimanldi, Fabrizio Leisen
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Testing for Unspecified Periodicities in Binary Time Series
Journal of Time Series Analysis, Volume 47, Issue 5, Page 984-997, September 2026.ABSTRACT Given random variables Y1,…,Yn$$ {Y}_1,\dots, {Y}_n $$ with Yi∈{0,1}$$ {Y}_i\in \left\{0,1\right\} $$ we test the hypothesis whether the underlying success probabilities pi$$ {p}_i $$ are constant or whether they are periodic with an unspecified period length of r≥2$$ r\ge 2 $$.
Finn Schmidtke, Mathias Vetter
wiley +1 more source
Bootstrap Unit Root Tests [PDF]
We consider the bootstrap unit root tests based on finite order autoregressive integrated models driven by iid innovations, with or without deterministic time trends.
Park, Joon
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Aggregation and the Structure of Value
Noûs, Volume 60, Issue 3, Page 619-644, September 2026.ABSTRACT Roughly, the view I call “Additivism” sums up value across time and people. Given some standard assumptions, I show that Additivism follows from two principles. The first says that how lives align in time cannot, in itself, matter. The second says, roughly, that a world cannot be better unless it is better within some period or another.
Weng Kin San
wiley +1 more source
Central limit theorems for weighted quadratic forms of dependent processes with applications in specification testing [PDF]
In this paper, we establish some new central limit theorems for generalized U-statistics of dependent processes under some mild conditions. Such central limit theorems complement existing existing results available from both the econometrics literature ...
Gao, Jiti, Hong, Yongmiao
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Philosophy and Phenomenological Research, Volume 113, Issue 2, Page 274-284, September 2026.ABSTRACT I discuss conditions under which maximizing a proxy utility function is harmful and suggest this poses problems for applying decision theory.
Sven Neth
wiley +1 more source
LIMIT THEOREMS FOR WEIGHTED BERNOULLI RANDOM FIELDS UNDER HANNAN'S CONDITION
, 2016 International audienceRecently, invariance principles for partial sums of Bernoulli random fields over rectangular index sets have been proved under Han-nan's condition.
Volny, Dalibor +2 more
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KPP Dynamics in Predator–Prey Models: A Survey and a Mussel–Algae Case Study
Studies in Applied Mathematics, Volume 157, Issue 3, September 2026.ABSTRACT We discuss traveling fronts in several coupled reaction–diffusion systems that model predator–prey interactions, as well as other systems that share similar structural features. We review some cases where the traveling fronts exist and are small perturbations of fronts in certain scalar equations of Fisher–KPP or Burgers–FKPP type.
Anna Ghazaryan, Vahagn Manukian
wiley +1 more source
Decay of correlations and limit theorems for random intermittent maps
Journal of the London Mathematical Society, Volume 114, Issue 3, September 2026.Abstract In this paper, we revisit the problem of polynomial memory loss and the central limit theorem (CLT) for time‐dependent LSV maps. More precisely, we show that for random LSV maps corresponding to a random parameter β(·)$\beta (\cdot)$ we obtain quenched memory loss, decay of correlations, CLTs with rates, moment bounds, and almost sure ...
Davor Dragičević +2 more
wiley +1 more source