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Published in 2020 at "Mathematische Nachrichten"
DOI: 10.1002/mana.201700415
Abstract: We prove the existence of good smooth integral models of Shimura varieties of Hodge type in arbitrary unramified mixed characteristic (0, p). As a first application we provide a smooth solution (answer) to a conjecture…
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Keywords:
arbitrary unramified;
varieties hodge;
unramified mixed;
mixed characteristic ... See more keywords
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Published in 2019 at "Forum of Mathematics, Sigma"
DOI: 10.1017/fms.2019.10
Abstract: We develop a theory of enlarged mixed Shimura varieties, putting the universal vectorial bi-extension defined by Coleman into this framework to study some functional transcendental results of Ax type. We study their bi-algebraic systems, formulate…
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Keywords:
shimura varieties;
mixed shimura;
enlarged mixed;
varieties algebraic ... See more keywords
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Published in 2018 at "International Mathematics Research Notices"
DOI: 10.1093/imrn/rny119
Abstract: We consider cycles on three-dimensional Shimura varieties attached to unitary groups, defined over extensions of a complex multiplication (CM) field $E$, which appear in the context of the conjectures of Gan et al. [6]. We…
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Keywords:
shimura varieties;
vertical distribution;
relations special;
distribution relations ... See more keywords
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Published in 2020 at "Compositio Mathematica"
DOI: 10.1112/s0010437x20007149
Abstract: We show that the compactly supported cohomology of certain $\text{U}(n,n)$- or $\text{Sp}(2n)$-Shimura varieties with $\unicode[STIX]{x1D6E4}_{1}(p^{\infty })$-level vanishes above the middle degree. The only assumption is that we work over a CM field $F$ in which…
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Keywords:
x1d6e4 infty;
shimura varieties;
stix x1d6e4;
unicode stix ... See more keywords
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Published in 2020 at "Compositio Mathematica"
DOI: 10.1112/s0010437x20007289
Abstract: We define variants of PEL type of the Shimura varieties that appear in the context of the arithmetic Gan–Gross–Prasad (AGGP) conjecture. We formulate for them a version of the AGGP conjecture. We also construct (global…
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Keywords:
unitary shimura;
shimura varieties;
arithmetic diagonal;
shimura ... See more keywords