Such functions appear in a wide variety of matrix optimization problems. We give a simple proof that this spectral function is differentiable at X if and only if the function f is differentiable at ...

Rajendra Bhatia, John A. Holbrook, Fréchet Derivatives of the Power Function, Indiana University Mathematics Journal, Vol. 49, No. 3 (Fall, 2000), pp. 1155-1173 ...

A series of lipophilic teicoplanin pseudoaglycon derivatives, including alkyl-, aryl-, calixarene- and protected sugar-containing conjugates, were prepared using azide–alkyne click chemistry.