A bstract In this paper we revisit a generalised crossing equation that follows from harmonic analysis on the conformal group, and is of particular interest for cosmological bootstrap programme. We present an exact solution to equation, dimensions two or higher, in terms 6j symbols Euclidean discuss its relevance. process provide detailed derivation analogue Biedenharn-Elliot identity said symb...

Let K denote a compact real symmetric subset of C and let AR(K) denote the real Banach algebra of all real symmetric continuous functions on K which are analytic in the interior K of K, endowed with the supremum norm. We characterize all unimodular pairs (f, g) in AR(K) 2 which are reducible. In addition, for an arbitrary compact K in C, we give a new proof (not relying on Banach algebra theory...