Bois-de-Gand

-celear"gand Contingent Valuation Methods

A Simple Characterization of Du Bois Singularities

We prove the following theorem characterizing Du Bois singularities. Suppose that Y is smooth and that X is a reduced closed subscheme. Let π : e Y → Y be a log resolution of X in Y that is an isomorphism outside of X. If E is the reduced pre-image of X in e Y , then X has Du Bois singularities if and only if the natural map ØX → Rπ∗ØE is a quasi-isomorphism. We also deduce Kollár’s conjecture ...

The Canonical Sheaf of Du Bois Singularities

We prove that a Cohen-Macaulay normal variety X has Du Bois singularities if and only if π∗ωX′(G) ≃ ωX for a log resolution π : X ′ → X , where G is the reduced exceptional divisor of π. Many basic theorems about Du Bois singularities become transparent using this characterization (including the fact that Cohen-Macaulay log canonical singularities are Du Bois). We also give a straightforward an...

F-injective Singularities Are Du Bois

In this paper, we prove that singularities of F -injective type are Du Bois. This extends the correspondence between singularities associated to the minimal model program and singularities defined by the action of Frobenius in positive characteristic.

Playing Peter Pan Conceptua izing " Bois " in Contemporary Queer Theory

As a queer and gender-queer individual, my relationships to both lesbian as an identity and to Toronto's lesbian communities have been marked by a strangely productive ambiguity. While "coming out" as a lesbian was and continues to be empowering, I have become increasingly aware of my own emotional and intellectual tensions with respect to the signifier, "lesbian," as it purports to simultaneou...