This paper is devoted to a study of a class of abstract Cauchy problems for semilinear nonautonomous evolution equations involving nonlocal initial conditions. Combining the theory of evolution families and the fixed point ...

The structural, mechanical, electronic, optical and thermodynamic properties of the t-X₃As₄ (X = Si, Ge and Sn) with tetragonal structure have been investigated by first principles calculations. Our calculated results ...