Apparently, this user prefers to keep an air of mystery about them.
7 Grothendieck trace on local cohomology? jul 11 '13
5 Comparison of two traces sep 17 '13
5 What 3-manifolds can be obtained by gluing $ S^1 \times P $ and two copies of $S^1 \times D^2$ jul 17 '14
4 Serre duality for compactly supported sheaves sep 16 '13