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6 papers · 2 filters
On stable cohomology of central extensions of elementary abelian groups
Fedor Bogomolov, Christian Böhning, Alena Pirutka
We study when kernels of inflation maps associated to extraspecial p-groups in stable group cohomology are generated by their degree two components. This turns out to be true if th…
Brauer groups of involution surface bundles
Andrew Kresch, Yuri Tschinkel
We present an algorithm to compute the Brauer group of involution surface bundles over rational surfaces.
Refined Swan conductors mod p of one-dimensional Galois representations
Kazuya Kato, Isabel Leal, Takeshi Saito
For a character of the absolute Galois group of a complete discrete valuation field, we define a lifting of the refined Swan conductor, using higher dimensional class field theory.
Involution surface bundles over surfaces
Andrew Kresch, Yuri Tschinkel
We construct models of involution surface bundles over algebraic surfaces, degenerating over normal crossing divisors, and with controlled singularities of the total space.
Motivic Euler products and motivic height zeta functions
Margaret Bilu
A motivic height zeta function associated to a family of varieties parametrised by a curve is the generating series of the classes, in the Grothendieck ring of varieties, of moduli…
Irredundant Triangular Decomposition
Gleb Pogudin, Agnes Szanto
Triangular decomposition is a classic, widely used and well-developed way to represent algebraic varieties with many applications. In particular, there exist sharp degree bounds fo…