ents are unconstrained.
%
%   penm.lbYx=cell(3,1); penm.lbYx{2}=-ones(3,3); penm.lbYx{3}=zeros(5,5);
%   penm.ubYx=cell(3,1); penm.ubYx{2}=ones(3,3) ;
% 
% * *lower and upper bound on matrices |Y|* (as matrix inequalities, i.e.
%   bound on all eigenvalues). 
%
%   penm.lbY = [0, -Inf, 1]; 
%   penm.ubY = [Inf, 0, 10];
% 
% * [optional] *matrix variable bounds treatment*, similarly
% to box constraints on |x| variables, it is possible to change the     
% treatment of constraints on matrix vari