A note on embedding and generating dual polar spaces.
In this paper the problem of construction of the canonical matrix belonging to symplectic forms on a module over the so called plural algebra (introduced in [5]) is solved.
The notes consist of a study of special Lagrangian linear subspaces. We will give a condition for the graph of a linear symplectomorphism to be a special Lagrangian linear subspace in . This way a special symplectic subset in the symplectic group is introduced. A stratification of special Lagrangian Grassmannian is defined.