For the parameter Formula: see text, denote the semi-direct product of the Witt algebra and the loop Schrödinger algebra as Formula: see text. In this paper, we determine the second cohomology groups of Formula: see text with trivial coefficients and determine its universal central extension. This yields three Formula: see text-cocycles for Formula: see text and two Formula: see text-cocycles for Formula: see text. We then proceed to consider the universal central extension of the Lie algebra Formula: see text in the non-additive category of Leibniz algebras. Finally, we classify all derivations of Formula: see text to calculate the first cohomology groups Formula: see text
Maher Abdaoui (Fri,) studied this question.