Quasar candidates near A1139, A1775, and 1633+33
Lists of quasar candidates discovered with blue, blue green, and and green grens plates are presented, along with a discussion of the surface densities of quasars and a comparison with the 3C 345 field. The plates covered the fields A1139, A1775, and 1663+33. A total of 74 new candidate quasars were detected, with surface densities higher than usually observed with a slitless spectra technique. The 3C 345 field was filled with quasars brighter than 19 mag, although slit spectra are recommended for confirmation.
The main objective of this article is to study dynamic of the ::: three-dimensional Boussinesq equations with the periodic boundary ::: condition.We prove that when the Rayleigh number $R$ crosses the ::: first critical Rayleigh number $R_c$, the Rayleigh-Benard problem ::: bifurcates from the basic state to an global attractor $\Sigma$, which is homeomorphic to $S^3$.