?? "geometric plethysm" .... ??? picking out projectively embedded partial flag variety ... ???

"generalized clebsch-gordan decomposition as finer as more structure is given ...." ...

??? confusion between "invariant tensor" and "invariant subspace" ... ???? .... relationship ... ??? ....


?? relators for multi-homogeneous coordinate algebra of partial flag variety .... ???? .....

..... ???? ....