Highly Influenced

# Closure relations for totally nonnegative cells in G/P

@inproceedings{RietschClosureRF, title={Closure relations for totally nonnegative cells in G/P}, author={K Rietsch} }

The totally nonnegative part of a partial flag variety G/P has been shown in [11, 10] to be a union of semi-algbraic cells. We show that the closure of a cell is a union of cells and give a combinatorial description of the closure relations. The totally nonnegative cells are defined by intersecting (G/P) ≥0 with a certain stratification of G/P defined by Lusztig [7]. We also verify the same closure relations for these strata.

Highly Cited

This paper has 18 citations. REVIEW CITATIONS

#### From This Paper

##### Figures, tables, and topics from this paper.

15 Citations

14 References

Similar Papers