6 papers
On semi-stable integral models for Shimura varieties
Jie Yang, Ioannis Zachos, Zhihao Zhao
We construct (potentially) semi-stable integral models for a class of Shimura varieties with maximal parahoric level at an odd prime . The main input is an explicit construction…
On -adic integral moduli schemes and local models for PEL type D
Jie Yang, Ioannis Zachos, Zhihao Zhao
We construct flat integral moduli schemes of PEL type D and the corresponding flat orthogonal Rapoport--Zink spaces with parahoric level structure over a -adic integer ring. The…
The basic locus of regular ramified unitary Rapoport-Zink spaces at vertex-stabilizer level
Ioannis Zachos, Zhihao Zhao
We construct the Bruhat-Tits stratification of the reduced basic locus of regular ramified unitary Rapoport-Zink spaces of signature at vertex-stabilizer level. To st…
The basic locus of unitary splitting Rapoport-Zink spaces with vertex stabilizer level
Ioannis Zachos, Zhihao Zhao
We construct the Bruhat-Tits stratification of the ramified unitary splitting Rapoport-Zink space, with the level being the stabilizer of a vertex lattice. To determine certain loc…
Semi-stable and splitting models for unitary Shimura varieties over ramified places. II
Ioannis Zachos, Zhihao Zhao
We consider Shimura varieties associated to a unitary group of signature . For these varieties, we construct -adic integral models over odd primes which ramify in…
On the geometry of splitting models
S. Bijakowski, I. Zachos, Z. Zhao
We consider Shimura varieties associated to a unitary group of signature where is even. For these varieties, by using the spin splitting models from Zachos-Zhao, we c…