document.write("« On Riemannian manifolds with positive weighted Ricci curvature of negative effective dimension. (arXiv:1704.06091v1 [math.DG])");document.write(" | ");document.write("On approximations by trigonometric polynomials of classes of functions defined by moduli of smoothness. (arXiv:1704.06056v1 [math.CA]) »");