Results 111 to 120 of about 127,909 (300)

Darboux Transformations from Reductions of the KP Hierarchy [PDF]

open access: yesarXiv, 1994
The use of effective Darboux transformations for general classes Lax pairs is discussed. The general construction of ``binary'' Darboux transformations preserving certain properties of the operator, such as self-adjointness, is given. The classes of Darboux transformations found include the multicomponent BKP and CKP reductions of the KP hierarchy.
arxiv  

Chandra observations and classification of AGN-candidates correlated with Auger UHECRs [PDF]

open access: yes, 2012
We report on Chandra X-ray observations of possible-AGNs which have been correlated with Ultra-high Energy Cosmic Rays (UHECRs) observed by the Pierre Auger Collaboration. Combining our X-ray observations with optical observations, we conclude that one-third of the 21 Veron-Cetty Veron (VCV) galaxies correlating with UHECRs in the first Auger data ...
arxiv   +1 more source

An Integrated Modelling, Debugging, and Visualisation Environment for G12 [PDF]

open access: yes, 2010
We present G12IDE, a front-end for the G12 platform aimed at helping users create and work with constraint models in a manner independent from any underlying solver. G12IDE contains tools for writing and evaluating models using Zinc and provides a feature rich debugger for monitoring a running search process. Debugging a search, as opposed to debugging
Mark Brown   +5 more
openaire   +2 more sources

Temperature‐Tunable Cholesteric Liquid Crystal Optical Combiners for Extended Reality Applications

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
Recent advancements in extended reality highlight their potential to enhance traditional displays like liquid crystal displays and organic light‐emitting diode screens. This article introduces an innovative cholesteric liquid crystal‐based optical combiner for head‐mounted displays, enabling seamless transitions between augmented reality, virtual ...
Yuanjie Xia   +6 more
wiley   +1 more source

Asset Pricing Puzzle: New Evidence of Fama-French Five-Factors in Emerging Market Perspectives

open access: yesReal Estate Management and Valuation, 2022
The asset pricing theory introduced by Fama and French (2015) documents five systematic common risk factors for equity valuation, such as: (a) market beta, (b) firm size, (c) firm value, (d) profitability and (e) investment strategy.
Hossain Mohammed Sawkat
doaj   +1 more source

The Economics of BitCoin Price Formation [PDF]

open access: yesarXiv, 2014
This paper analyses the relationship between BitCoin price and supply-demand fundamentals of BitCoin, global macro-financial indicators and BitCoin attractiveness for investors. Using daily data for the period 2009-2014 and applying time-series analytical mechanisms, we find that BitCoin market fundamentals and BitCoin attractiveness for investors have
arxiv  

Regulation and Physiological Functions of G12/13-Mediated Signaling Pathways [PDF]

open access: yesNeurosignals, 2009
Accumulating data indicate that G12 subfamily (Galpha12/13)-mediated signaling pathways play pivotal roles in a variety of physiological processes, while aberrant regulation of this pathway has been identified in various human diseases. It has been demonstrated that Galpha12/13-mediated signals form networks with other signaling proteins at various ...
Tohru Kozasa   +2 more
openaire   +3 more sources

Matching distributions: Recovery of implied physical densities from option prices [PDF]

open access: yesarXiv, 2018
We introduce a non-parametric method to recover physical probability distributions of asset returns based on their European option prices and some other sparse parametric information. Thus the main problem is similar to the one considered foir instance in the Recovery Theorem by Ross (2015), except that here we consider a non-dynamical setting.
arxiv  

Application of semi-deviation as a proxy for the expected return estimation in the Croatian equity market

open access: yesCroatian Review of Economic, Business and Social Statistics, 2019
In the field of portfolio management the focus has been on the out-of-sample estimation of the covariance matrix mainly because the estimation of expected return is much more challenging.
Dolinar Denis   +2 more
doaj   +1 more source

Market response to investor sentiment : [version January 2011] [PDF]

open access: yes, 2011
This paper reconsiders the effect of investor sentiment on stock prices. Using survey-based sentiment indicators from Germany and the US we confirm previous findings of predictability at intermediate time horizons.
Hengelbrock, Jördis   +2 more
core  

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