The $\Lambda$CDM model has successfully passed the confrontation to many observations of cosmological relevances in the past. In recent years, several tensions have been raised up with the increasing accuracy of cosmological data. The amplitude of the matter fluctuations is regarded as one of these serious concerns. We show that redshift space dstorsion from present day surveys provide...
Voids are one of the building blocks of large scale structure (LSS) that have been capturing the attention of the community in the last decade. The reasons are that they are, in principle, easy to model, found in low density regions, mitigating much of the complications from non-linearities, present higher densities of dark energy and neutrinos than an average environment in LSS and last but...
