Results 51 to 60 of about 33,047,881 (379)
Solutions to viscous Burgers equations with time dependent source term
Electronic Journal of Differential Equations, 2021 We study the existence and uniqueness of weak solutions for a Cauchy problem of a viscous Burgers equation with a time dependent reaction term involving Dirac measure.
Satyanarayana Engu +2 more
doaj
, 1999 A simple model of the brane-world cosmology has been proposed, which is characterized by four parameters, the bulk cosmological constant, the spatial curvature of the universe, the radiation strength arising from bulk space-time and the breaking ...
Ida, Daisuke
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Inverse problems for a multi-term time fractional evolution equation with an involution
Inverse Problems in Science and Engineering, 2021 This paper focuses on considering two inverse source problems (ISPs) for a multi-term time-fractional evolution equation with an involution term, interpolating the heat and wave equations. The fractional derivatives are defined in Caputo's sense.
Asim Ilyas, S. Malik, Summaya Saif
semanticscholar +1 more source
Symmetry, 2020 Fractional differential equations depict nature sufficiently in light of the symmetry properties which describe biological and physical processes.
I. Ahmad +4 more
semanticscholar +1 more source
TAFFNet: Time‐Aware Adaptive Feature Fusion Network for Very Short‐Term Precipitation Forecasts
Geophysical Research Letters, 2023 Deep learning models based on radar echo extrapolation have been widely used in precipitation nowcasting. However, they face the challenge of insufficient input information when extending the forecast lead time, requiring the incorporation of physics ...
Jingnan Wang +4 more
doaj +1 more source
Long-term Recall of Time to Pregnancy [PDF]
Epidemiology, 2016 Despite the widespread use of retrospectively reported time to pregnancy to evaluate fertility either as an outcome or as a risk factor for chronic disease, only two small studies have directly compared prospective data with later recall.The North Carolina Early Pregnancy Study (1982-1986) collected prospective time-to-pregnancy data from the beginning
D. Robert McConnaughey +4 more
openaire +2 more sources
Time Scales and Characteristics of Stock Markets in Different Investment Horizons
Frontiers in Physics, 2020 Investors adopt varied investment strategies depending on the time scales (τ) of short-term and long-term investment time horizons (ITH). The nature of the market is very different in various investment τ.
Ajit Mahata, Md. Nurujjaman
doaj +1 more source
TIME BOUNDARY TERMS AND DIRAC CONSTRAINTS [PDF]
International Journal of Modern Physics A, 2012 Time boundary terms usually added to action principles are systematically handled in the framework of Dirac's canonical analysis. The procedure begins with the introduction of the boundary term into the integral Hamiltonian action and then the resulting action is interpreted as a Lagrangian one to which Dirac's method is applied.
openaire +3 more sources
Recurrence time analysis, long-term correlations, and extreme events
, 2005 The recurrence times between extreme events have been the central point of statistical analyses in many different areas of science. Simultaneously, the Poincar\'e recurrence time has been extensively used to characterize nonlinear dynamical systems.
Altmann, Eduardo G., Kantz, Holger
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Term structure transmission of monetary policy [PDF]
, 2007 Under bond rate transmission of monetary policy, standard restrictions on policy responses to obtain determinate inflation need not apply. In periods of passive policy, bond rates may exhibit stable responses to inflation if future policy is anticipated ...
Ang +28 more
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