The coda wave decay (CWD) method was used to estimate the quality factor from amplitude rate for broadband seismic stations (IBDR, MSL, and NSR4) using a single backscattering model. This research aims calculate attenuation coefficient frequency-dependent (α) three compare them comprehend details of Earth's crust structure in those stations. Then, test if they are homogenous or not. Also, inves...

Let G be a finite group. An irreducible character χ is called monolithic when the factor group G/ker⁡(χ) has unique minimal normal subgroup. In this paper, we prove that for smallest prime q dividing order of if faithful imprimitive degree q, then becomes nonabelian q-group or Frobenius with cyclic complement whose q. Under certain conditions, also classify groups in which their nonlinear chara...