Dialectica and Chu constructions: cousins?
Diameters in locales: How bad they can be
Die algebraische Struktur der allgemeinen Kummerschen Transformationen
Die Einbettung von Mittelwertstrukturen in Q-Vektorräume.
Die Kohomologie S-arithmetischer Gruppen über Funktionenkörpern.
Die Radikale und das Prinzip des maximalen homomorphen Bildes in Bikategorien
Die richtigen Räume für Analysis im Unendlich-Dimensionalen.
Diffeotopy functors of ind-algebras and local cyclic cohomology.
Differential algebra in a topos
Differential equations, Spencer cohomology, and computing resolutions.
Differential forms with values in groups (preliminary report)
Differential graded Lie algebras controlling infinitesimal deformations of coherent sheaves
Direct limits and filtered colimits are strongly equivalent in all categories
Directed homotopy theory, I
Directed homotopy theory, II. Homotopy constructs.
Disconnectednesses and closure operators
Disconnectednesses cogenerated by Hausdorff spaces
Disjointness and related properties of coproducts
Distinguishable sets
Distinguishing derived equivalence classes using the second Hochschild cohomology group
We study the second Hochschild cohomology group of the preprojective algebra of type D₄ over an algebraically closed field K of characteristic 2. We also calculate the second Hochschild cohomology group of a non-standard algebra which arises as a socle deformation of this preprojective algebra and so show that the two algebras are not derived equivalent. This answers a question raised by Holm and Skowroński.