821 research outputs found
A triplet biradical with double bidentate sites based on tert-butyl pyridyl nitroxide as a candidate for strong ferromagnetic couplers
We synthesised a new biradical, 34bpybNO, having two chelating radical sites and demonstrated its crystal structure and ground triplet nature. Frozen-solution magnetic measurement and electron spin resonance results revealed a strong intramolecular ferromagnetic coupling reaching 2J/kB = ∼+170 K, which is supported by density functional theory calculations
Mass formulas and the basic locus of unitary Shimura varieties
In this article we compute the mass associated to any unimodular lattice in a
Hermitian space over an arbitrary CM field under a condition at 2. We study the
geometry and arithmetic of the basic locus of the GU(r,s)-Shimura variety
associated to an imaginary quadratic field modulo a good prime p>2. We give
explicit formulas for the numbers of irreducible and connected components of
the basic locus, and of points of the zero-dimensional Ekedahl-Oort (EO)
stratum, as well as of the irreducible components of basic EO strata when the
signature is either (1, n-1) or (2,2).Comment: 47 pages, comments are welcom
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研修: 平成30年度大学図書館職員長期研修主催: 筑波大学期間: 平成30年7月2日~7月13日会場: 筑波大学春日エリア情報メディアユニオン2階情報メディアホール
〈Paper〉University Art Collection and Business-Academia Collaboration
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On the supersingular locus of Shimura varieties for quaternionic unitary groups
We study a Shimura variety attached to a unitary similitude group of a
skew-Hermitian form over a totally indefinite quaternion algebra over a totally
real number field. We give a necessary and sufficient condition for the
existence of skew-Hermitian self-dual lattices. Under this condition we show
that the superspecial locus in the fiber at of the associated Shimura
variety is non-empty. We also give an explicit formula for the number of
irreducible components of the supersingular locus when is odd and
unramified in the quaternion algebra.Comment: 37 pages, comments welcom
Electron localization and dynamics in Ln - LnX3, and LnX2 - LnX3 - AX melts: an optical reflectivity, absorption and ESR study (Ln: Ce, Nd, Eu; X: Cl, I; A: alkali metal)
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