Results 21 to 30 of about 1,082,135 (333)
Geodesy and Cartography, 2012 Research demonstrates the accuracy of pseudo distance measurements evaluating the impact of the refraction index and spread speed of vibrations in the vacuum.
Jonas Skeivalas
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Ecology and Evolution, 2020 Theoretical studies suggest that temporal covariation among and temporal autocorrelation within demographic rates are important features of population dynamics.
Rémi Fay +4 more
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Review on Efficiency and Anomalies in Stock Markets
Economies, 2020 The efficient-market hypothesis (EMH) is one of the most important economic and financial hypotheses that have been tested over the past century. Due to many abnormal phenomena and conflicting evidence, otherwise known as anomalies against EMH, some ...
Kai-Yin Woo +3 more
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Modelowanie kowariancji kursów walutowych z zastosowaniem cen minimalnych i maksymalnych
Problemy Zarządzania, 2019 The article presents a proposal for exchange rate modelling by means of minimum and maximum prices that enables a better description of dependencies in the foreign exchange market.
Piotr Fiszeder
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THE CO-MOVEMENT CONNECTION BETWEEN THE GDP AND THE MAIN STOCK MARKET INDEX. THE CASES OF USA AND ROMANIA [PDF]
Analele Universităţii Constantin Brâncuşi din Târgu Jiu : Seria Economie, 2015 A recurring problem among economists is that of the connection supposed to exist between the Gross Domestic Product and the main stock market index. Several studies have been conducted, trying to analyze the existence and the extent of this connection,
IOAN ROXANA
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Covariant residual entropy [PDF]
Journal of High Energy Physics, 2014 35 pages, 6 figures; v2: references added, matches the published ...
openaire +4 more sources
Large Covariance Estimation by Thresholding Principal Orthogonal Complements [PDF]
, 2013 This paper deals with the estimation of a high-dimensional covariance with a conditional sparsity structure and fast-diverging eigenvalues. By assuming sparse error covariance matrix in an approximate factor model, we allow for the presence of some cross-
Fan, Jianqing +2 more
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Analysis of epistasis: A genetic model for triploid endosperm traits
浙江大学学报. 农业与生命科学版, 2007 A genetic model for triploid endosperm traits was proposed on the basis of diallel cross system to analyze additive by additive epistasis of direct effect (AA) and maternal effect (AmAm) along with direct additive effect, dominance effect, cytoplasm ...
CHENG Jun-qi +3 more
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Physical properties of the Schur complement of local covariance matrices [PDF]
, 2007 General properties of global covariance matrices representing bipartite Gaussian states can be decomposed into properties of local covariance matrices and their Schur complements. We demonstrate that given a bipartite Gaussian state $\rho_{12}$ described
Eisert J Wolf M M +7 more
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Covariance between the forward recurrence time and the number of renewals
Modern Stochastics: Theory and Applications, 2021 Recurrence times and the number of renewals in $(0,t]$ are fundamental quantities in renewal theory. Firstly, it is proved that the upper orthant order for the pair of the forward and backward recurrence times may result in NWUC (NBUC) interarrivals.
Sotirios Losidis
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