The extended BMS algebra contains a conformal subgroup that acts on the celestial sphere as SO(3,1). It is of interest to perform mode expansions free fields in Minkowski spacetime realize this symmetry simple way. In present work we such expansion for massive scalar using unitary principal series representations SO(3,1) with view developing holographic approach gravity asymptotically flat spac...

In order to overcome the housing shortage, a large number of apartments were built in South Korea during the second half of the 20th century. Thus, the apartments became the typical housing type in South Korea. This paper is intended to analyze the changes in the spatial configurations of the apartments constructed in Cheongju, South Korea, from the 1972 to 2000. This study has employed Space S...

We show that, in any space-time dimension, the on-shell (electric) conformal Carrollian scalar can be interpreted as flat-space limit of singleton representation algebra. In fact, a recently proposed higher-spin algebra for Minkowski spacetime amounts to Poincar\'e enveloping on corresponding module. This is contraction that entering Vasiliev's equations, which constructed analogously from also...