Inspired by a 1987 result of Hanson and Toft [Edge-colored saturated graphs, J. Graph Theory 11 (1987), 191–196] and several recent results, we consider the following saturation problem for edge-colored graphs. An edge-coloring of a graph F is rainbow if every edge of F receives a different color. Let R(F ) denote the set of rainbow-colored copies of F . A t-edge-colored graph G is (R(F ), t)-s...

We derive the empirical formulas for neutron star mass and gravitational redshift as a function of central density specific combination nuclear saturation parameters, which are applicable to stellar models constructed with up threefold density. Combining both formulas, one also estimates radius. In practice, we find that (radius) can be estimated within $\sim 10\%$ (a few percent) accuracy by c...

inverse problem is one of the most important problems in geophysics as model parameters can be estimated from the measured data directly using inverse techniques. in this paper, applying different inverse methods on integration of s-wave and gpr velocities are investigated for estimation of porosity and water saturation. a combination of linear and nonlinear inverse problems are solved. linear ...

Water saturation determination is one of the most important tasks in reservoir studies to predict oil and gas in place needed to be calculated with more accuracy. The estimation of this important reservoir parameter is commonly determined by various well logs data and by applying some correlations that may not be so accurate in some real practical cases, especially for carbonate reservoirs. Sin...