Results 11 to 20 of about 1,251,037 (325)

Spectral analysis and the death of value investing

open access: yesCogent Economics & Finance, 2021
This study explores the redundancy of the value premium by conducting a Fourier analysis. The results illustrate periodicity in the value premium and merges the Adaptive Market Hypothesis with the Efficient Market hypothesis.
John-Morgan Bezuidenhout   +1 more
doaj   +1 more source

Ophthalmic Bioengineering. Review

open access: yesOftalʹmologiâ, 2023
This article published the materials of the round table “Bioengineering in ophthalmology” (OphthalmicBioengineering), held on May 13, 2021 as part of the international conference Ural Symposium on Biomedical Engineering, Radioelectronics and Information ...
V. O. Ponomarev   +11 more
doaj   +1 more source

Forecasting Inflation Based on Hybrid Integration of the Riemann Zeta Function and the FPAS Model (FPAS + ζ): Cyclical Flexibility, Socio-Economic Challenges and Shocks, and Comparative Analysis of Models [PDF]

open access: yesSocioEconomic Challenges
Inflation forecasting is one of the main socio-economic challenges in modern macroeconomic modeling, especially when cyclical, structural, and shock factors act simultaneously in the system. Traditional forecasting systems, such as Forecasting and Policy
Davit Gondauri
doaj   +1 more source

FREQUENCY ANALYSIS OF DELTA SCUTI VARIABLE STARS. I.

open access: yesOdessa Astronomical Publications, 2017
The Fourier analyses are performed for photoelectric observations of two δ Scuti stars V567 Oph and KU Cen. It is shown that V567 Oph is a multiperiodic star and KU Cen has one main period.
V. P. Bezdenezhnyi
doaj   +1 more source

Operator-valued zeta functions and Fourier analysis [PDF]

open access: yes, 2019
The Riemann zeta function $\zeta(s)$ is defined as the infinite sum $\sum_{n=1}^\infty n^{-s}$, which converges when ${\rm Re}\,s>1$. The Riemann hypothesis asserts that the nontrivial zeros of $\zeta(s)$ lie on the line ${\rm Re}\,s= \frac{1}{2}$. Thus,
Bender, Carl M., Brody, Dorje C
core   +2 more sources

Clifford algebras, Fourier transforms and quantum mechanics [PDF]

open access: yes, 2012
In this review, an overview is given of several recent generalizations of the Fourier transform, related to either the Lie algebra sl_2 or the Lie superalgebra osp(1|2).
De Bie, Hendrik
core   +2 more sources

A Review on The Relationship between Oil Prices and Stock Prices in Turkey: New Evidences from Fourier Approach

open access: yesEkonomi, Politika & Finans Araştırmaları Dergisi, 2021
Oil is one of the most important energy resources in production and consumption processes. Therefore, shocks from oil prices can affect many macroeconomic variables. One of these macroeconomic variables is stock prices, and it is important to investigate
Mehmet Songur
doaj   +1 more source

Fourier Analysis on the Sphere [PDF]

open access: yesTransactions of the American Mathematical Society, 1975
A new approach to harmonic analysis on the unit sphere in R d + 1 {{\mathbf {R}}^{d + 1}} is given, closer in form to Fourier analysis on R
openaire   +1 more source

Pseudorandomness for Regular Branching Programs via Fourier Analysis [PDF]

open access: yes, 2013
We present an explicit pseudorandom generator for oblivious, read-once, permutation branching programs of constant width that can read their input bits in any order. The seed length is $O(\log^2 n)$, where $n$ is the length of the branching program.
A. Healy   +11 more
core   +1 more source

New approach for the determination of the characteristics of signals containing fluctuating harmonics [PDF]

open access: yesInternational Journal of Metrology and Quality Engineering, 2011
This paper describes a new approach for the analysis of signals containing fluctuating harmonics. It is based on the Fourier transform, using windowing to reduce the error arising from analysing the signal over a non integer number of signal periods and ...
Poletaeff A., Espel P.
doaj   +1 more source

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