Linear groups of degree four containing the subgroup SL₂(k) ⊗ SL₂(k)Let a field
K be an algebraic extension of a field
k. Assume that the characteristic of
k Instability of some k -essence spacetimesWe study the stability properties of static, spherically symmetric configurations in
k Porosity dependence of sound propagation in liquid-4He-filled aerogel and superfluid phases. The absorption peak due to phonon-roton interaction around 1
K was not observed even
Age data on pegmatites of south Kerala and their tectonic significance.The
K/Ar mica age of chrysoberyl-bearing pegmatites from four localities of Trivandrum district