299 citations · 1.1k across the 42 of their papers we have counts for
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Crossing the Phantom Divide Barrier with Scalar Tensor Theories
L. Perivolaropoulos
There is accumulating observational evidence (based on SnIa data) that the dark energy equation of state parameter may be evolving with time and crossing the phantom divide bar…
Dark Energy and the quietness of the Local Hubble Flow
M. Axenides, L. Perivolaropoulos
The linearity and quietness of the Local () Hubble Flow (LHF) in view of the very clumpy local universe is a long standing puzzle in standard and in open CDM cosmogony. T…
Some Dynamical Effects of the Cosmological Constant
M. Axenides, E. G. Floratos, L. Perivolaropoulos
Newton's law gets modified in the presence of a cosmological constant by a small repulsive term (antigarvity) that is proportional to the distance. Assuming a value of the cosmolog…
Searching for Long Strings in CMB Maps
L. Perivolaropoulos
Using analytical methods and Monte Carlo simulations, we analyze new statistics designed to detect isolated step-like discontinuities which are coherent over large areas of Cosmic…
A Cosmic String Specific Signature on the Cosmic Microwave Background
R. Moessner, L. Perivolaropoulos, R. Brandenberger
Using an analytical model for the string network we show that the kurtosis of cosmic microwave background (CMB) temperature gradient maps is a good statistic to distinguish between…