2 citations · 3 across the 5 of their papers we have counts for
6 papers
Geophysical implications of a decentered inner core
Calin Vamos, Nicolae Suciu
In a first approximation, the Earth's interior has an isotropic structure with a spherical symmetry. Over the last decades the geophysical observations have revealed, at different…
Seismic hemispheric asymmetry induced by Earth's inner core decentering
Calin Vamos, Nicolae Suciu
In a first approximation the Earth's interior has an isotropic structure with a spherical symmetry. Over the last decades the geophysical observations have revealed, at different s…
Autoregressive description of biological phenomena
Vasile V Morariu, Calin Vamos, Alexadru Pop +3
Many natural phenomena can be described by power-laws. A closer look at various experimental data reveals more or less significant deviations from a 1/f spectrum. We exemplify such…
Influence of deterministic trend on the estimated parameters of GARCH(1,1) model
Calin Vamos, Maria Craciun
The log returns of financial time series are usually modeled by means of the stationary GARCH(1,1) stochastic process or its generalizations which can not properly describe the non…
Order 1 autoregressive process of finite length
Calin Vamos, Stefan M. Soltuz, Maria Craciun
The stochastic processes of finite length defined by recurrence relations request additional relations specifying the first terms of the process analogously to the initial conditio…
Detrended Fluctuation Analysis of Autoregressive Processes
V. V. Morariu, L. Buimaga-Iarinca, C. Vamos +1
Autoregressive processes (AR) have typical short-range memory. Detrended Fluctuation Analysis (DFA) was basically designed to reveal long range correlation in non stationary proces…