Results 81 to 90 of about 6,650 (233)

Kummer varieties and their Brauer groups [PDF]

, 2017
We study Kummer varieties attached to 2-coverings of abelian varieties of arbitrary dimension. Over a number field we show that the subgroup of odd order elements of the Brauer group does not obstruct the Hasse principle. Sufficient
Zarhin, Yuri, Zarhin, Y., Skorobogatov, AN, Skorobogatov, A.   +3 more
core   +1 more source

Dissecting the genetic basis of climatic adaptation in wild relatives (Malus baccata) for climate‐resilient apple breeding

Journal of Integrative Plant Biology, EarlyView.
This comprehensive map of genetic variation in wild apple (Malus baccata) and set of key genes associated with adaptation to temperature, precipitation, and soil properties establishes a foundation for breeding climate‐resilient apple cultivars and conserving the genetic resources of wild crop relatives.
Ying Su, Yani Hao, Xuejing Cao, Lin Wang, Zhiqi Xu, Fan Zhang, Zhiyao Ma, Xu Wang, Jiacui Li, Tianrong Fan, Ruoyan Zhao, Zhongqi Liu, Wenrui Wang, Yingchun Zhang, Xuanwen Yang, Sifan Yang, Dajiang Wang, Kun Wang, Simiao Sun, Zichen Li, Wen Tian, Yanming Sun, Zhao Liu, Yanshuai Xu, Hua Xiao, Yanling Peng, Xiaodong Xu, Ruirui Liu, Xinmin Tian, Yongfeng Zhou, Yuan Gao   +30 more
wiley   +1 more source

Picard and Brauer groups of Zariski schemes

, 1986
The Cartier-Yuan exact sequence is used to calculate Picard groups and Brauer groups of Zariski surfaces and their generalizations. A result of Blass-Deligne on the factoriality of general affine Zariski surfaces is extended to all higher dimensional ...
Raymond Hoobler, Piotr Blass
core   +1 more source

Categorical Atypicality and Evaluation Accuracy: Who Make More Accurate Evaluations of Atypical Firms?

Journal of Management Studies, EarlyView.
Abstract Prior literature on market categories and identities focuses primarily on whether categorical atypicality leads to positive or negative evaluation; however, much less is known about whether the evaluation is accurate or not. While it is important for producers to know if atypicality is penalized or rewarded, audiences are also concerned about ...
Pengfei Wang, Jingjiang Liu
wiley   +1 more source

The Brauer-Manin Obstruction and Sha[2].

, 2007
We discuss the Brauer-Manin obstruction on del Pezzo surfaces of degree 4. We outline a detailed algorithm for computing the obstruction and provide associated programs in magma.
Flynn, E. V., Bright, M.J., Bruin, N., Logan, A.   +3 more
core  

Vertical Spillover of Product Recalls: Theorization and Empirical Examination in the US Automobile Industry

Journal of Supply Chain Management, EarlyView.
ABSTRACT This study examines the vertical spillover effect of product recalls, defined as the losses supplier firms incur when buyer firms announce product recalls. Drawing on social network theory, this study theorizes that relationship ties between recalling firms and their suppliers serve as “pipes” and “prisms” that transmit a cash flow effect and ...
Huashan Li, Hari Bapuji, Srinivas Talluri, Prakash J. Singh, Sriram Narayanan   +4 more
wiley   +1 more source

Rational Singularities and the Brauer Group

Journal of Algebra, 1993
The authors present two examples of Brauer group calculations. First, they exhibit a local normal two dimensional domain \(R\), which is the local ring of an ordinary double point on a quartic in \(\mathbb{P}^ 3 (\mathbb{C})\) which has trivial divisor class group while its completion has class group of order 2 and the kernel \(B(K/R)\) of the map from
Demeyer, F., Ford, T., Miranda, R.
openaire   +1 more source

Topological methods for complex-analytic Brauer groups

, 2005
Using methods from algebraic topology and group cohomology, I pursue Grothendieck's question on equality of geometric and cohomological Brauer groups in the context of complex-analytic spaces.
Schröer, Stefan
core   +1 more source

Sleep characteristics and self‐reported sleep quality in the oldest‐old: Results from a prospective longitudinal cohort study

Journal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary Little is known about the correlation between subjective perception and objective measures of sleep quality in particular in the oldest‐old. The aim of this study was to perform longitudinal home sleep monitoring in this age group, and to correlate results with self‐reported sleep quality.
Hugo Saner, Kevin Möri, Narayan Schütz, Philipp Buluschek, Tobias Nef   +4 more
wiley   +1 more source

The Brauer Group of a Cocommutative Coalgebra

Journal of Algebra, 1995
Let \(R\) be a cocommutative coalgebra. The authors define the notion of an \(R\)-coalgebra \(D\), and an Azumaya \(R\)-coalgebra. To do this, they develop definitions of the cocenter of a coalgebra, the cocommutator coalgebra of a coalgebra map, and of coseparability of a coalgebra.
Torrecillas, B., Van Oystaeyen, F., Zhang, Y.-H.   +2 more
openaire   +2 more sources