Estimates of the norms of some cosine and sine series

Jorge BUSTAMANTE

Toward the theory of semi-linear Beltrami equations

Vladimir GUTLYANSKİİ, Olga NESMELOVA, Vladimir RYAZANOV, Eduard YAKUBOV

Generalizations of the drift Laplace equation over the quaternions in a class of Grushin-type spaces

Thomas BİESKE, Keller BLACKWELL

Estimate of the spectral radii of Bessel multipliers and consequences

Rosario CORSO

Some recent and new fixed point results on orthogonal metric-like space

Özlem ACAR