The asymptotic behaviour of the smallest eigenvalue in linear Koiter shell problems is studied, as the thickness parameter tends to zero. In particular, three types of shells of r...
A saw-toothed chessboard, or STC for short, is a kind of chessboard whose boundary forms two staircases from left down to right without any hole inside it. A rook at square (i, j)...
In this work, the authors consider the boundary value problem y + a(t)y = g(t) f (y), 0 t 2, y(0) = y(2), y (0) = y (2), and establish the existence of nonnegative solutions in ...