Results 131 to 140 of about 29,394,877 (347)

Method simplifying calculation of coefficients of fractional parentage for translationally invariant shell-model

open access: yesOpen Physics, 2013
Mickevičius Saulius   +2 more
doaj   +1 more source

Observation of Lie algebraic invariants in quantum linear optics

open access: yesPhysical Review Research
Over the past few years, various methods have been developed to engineer and to exploit the dynamics of photonic quantum states as they evolve through linear optical networks.
Giovanni Rodari   +14 more
doaj   +1 more source

Coherent Forecasting of Realized Volatility

open access: yesJournal of Forecasting, EarlyView.
ABSTRACT The QLIKE loss function is the stylized favorite of the literature on volatility forecasting when it comes to out‐of‐sample evaluation and the state of the art model for realized volatility (RV) forecasting is the HAR model, which minimizes the squared error loss for in‐sample estimation of the parameters.
Marius Puke, Karsten Schweikert
wiley   +1 more source

Doubtful Receivables' Risk and Its Impact on Stock Returns

open access: yesJournal of Corporate Accounting &Finance, EarlyView.
ABSTRACT The current research proposes a previously unknown source of risk in relation to companies’ doubtful receivables. Higher relative doubtful receivables present a risk for companies' future cash flows. Hence, the article discusses an innovative risk measure associated with companies’ doubtful receivables.
Roi D. Taussig
wiley   +1 more source

Analytic and Algebraic Methods in Physics

open access: yesActa Polytechnica, 2022
Andrii Khrabustovskii, Miloslav Znojil
doaj  

An Algebraic Multigrid Method for Eigenvalue Problems [PDF]

open access: green, 2015
Xiaole Han   +3 more
openalex  

Precision Restoration to Minimize Soil Loss in a Watershed in the Atlantic Forest Domain

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT The Turvo River Watershed, located in the Zona da Mata region of Minas Gerais and part of the Doce River Basin, faces serious problems of erosion and soil degradation, which compromise and reduce the quality of local water resources. Given this scenario, it is essential to implement environmental recovery strategies that prioritize the ...
Rodrigo Nobre Santana   +6 more
wiley   +1 more source

Breaking the Exponential: Decoherence‐Driven Power‐Law Spontaneous Emission in Waveguide Quantum Electrodynamics

open access: yesLaser &Photonics Reviews, EarlyView.
Introducing dynamical dephasing into the photon modes of a waveguide causes spontaneous emission to switch from conventional exponential decay to a robust power‐law behavior visible at short times. The power law arises from photon diffusion in a dynamically disordered environment, uncovering a previously unexplored, decoherence‐induced pathway to ...
Stefano Longhi
wiley   +1 more source

Who Knows Best What the Next Year Will Hold for You? The Validity of Direct and Personality‐based Predictions of Future Life Experiences Across Different Perceivers

open access: yesEuropean Journal of Personality, EarlyView., 2020
Abstract This study explored the validity of person judgements by targets and their acquaintances (‘informants’) in longitudinally predicting a broad range of psychologically meaningful life experiences. Judgements were gathered from four sources (targets, N = 189; and three types of informants, N = 1352), and their relative predictive validity was ...
Nele M. Wessels   +3 more
wiley   +1 more source

Algebraic Reconstruction Methods

open access: yes, 2008
Ill-posed sets of linear equations typically arise when discretizing certain types of integral transforms. A well known example is image reconstruction, which can be modeled using the Radon transform. After expanding the solution into a finite series of basis functions a large, sparse and ill-conditioned linear system occurs.
openaire   +1 more source

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