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School Colloquium——Stable reduction of algebraic curves and abelian varieties
北大 algebraic curves abelian varieties
2023/6/16
The stable reduction theorem was proved by Grothendieck for Abelian varieties and subsequently by Deligne and Mumford for projective curves.
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Number of rational points of difference varieties in finite difference fields
有限差分域 差分簇 有理点数
2023/4/13
A difference field is a field with a distinguished automorphism. Automorphisms of a finite field are powers of the Frobenius map. In this talk, I will discuss how to estimate the number of rational po...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Arithmetic purity of strong approximation for complete toric varieties
完整 复曲面品种 强近似 算术纯度
2023/4/18
In this talk, I will discuss arithmetic purity of strong approximation : motivations and related results. Finally, for complete toric varieties, I will briefly explain my work on this topic.
Artificially Selected Grain Shape Gene Combinations in Guangdong Simiao Varieties of Rice (Oryza sativa L.)
Guangdong Simiao varieties Grain shape Fixation index Allele mining Molecular breeding Rice
2023/4/21
Grain shape is a key trait in rice breeding. Although many QTLs and genes of grain shape have been identified, how different combinations of alleles of these genes affect grain shape is largely unknow...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Shimura varieties and p-adic geometry
志村变种 p-adic几何 代数几何空间 算术几何
2023/4/28
Shimura varieties are a class of algebraic geometric spaces that play a very important role in arithmetic geometry, especially in the Langlands program. In recent years, methods from the geometric rep...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：On varieties of general type with many global forms
全局形式 一般类型 品种
2023/5/6
We expect that the study of pluricanonical systems of varieties of general type with many global forms can be reduced to the study of pluricanonical systems of varieties of lower dimensions. We show t...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Some geometry of affine Deligne-Lusztig varieties
仿射 Deligne-Lusztig变种 几何
2023/5/17
The mod p points of a Shimura variety have a conjectural description called the Langlands-Rapoport conjecture. In accordance with the conjecture, Rapoport defined (generalized) affine Deligne-Lusztig ...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Special cycles on Shimura varieties and theta series
下村品种 θ系列 特殊循环
2023/5/17
In this talk I will introduce special and generalized cycles on Shimura varieties and discuss how to use them to construct geometric and arithmetic theta series. Then I will briefly discuss the connec...
Untapped rice varieties could sustain crop supplies in face of climate change
climate change rice varieties modified crops sustainable rice breeding
2021/8/4
Local rice varieties in Vietnam could be used to help breed improved crops with higher resilience to climate change, according to a new study. Researchers are aiming to identify varieties that can sur...
Revealing Distinctions in Genetic Diversity and Adaptive Evolution Between Two Varieties of Camellia sinensis by Whole-Genome Resequencing
Whole-Genome Resequencing Genetic Diversity Camellia sinensis
2023/4/20
Camellia sinensis var. sinensis (CSS) and C. sinensis var. assamica (CSA) are the two most economically important tea varieties. They have different characteristics and geographical distribution. Thei...
Genomes of 5 cotton species could lead to better varieties（图）
Genomes 5 cotton species better varieties
2020/4/29
Cotton producers in the U.S. and around the world are looking for new varieties that can better withstand droughts, pests, and pathogens while yielding high-quality fibers for the textile industry.To ...
Structural, thermal, and hydrolysis properties of large and small granules from C-type starches of four Chinese chestnut varieties
Chinese chestnut Granule size Hydrolysis properties Starch Structural properties Thermal properties
2023/8/9
Large and small granules were separated from C-type starches of four Chinese chestnut varieties growing in the same environment. They had similar amylose contents from 17.7% to 20.2% and showed C-type...
MUMFORD-TATE GROUPS, FAMILIES OF CALABI-YAU VARIETIES AND ANALOGUE ANDR¶E-OORT PROBLEMS I
MUMFORD-TATE GROUPS FAMILIES OF CALABI-YAU VARIETIES ANALOGUE ANDR E-OORT PROBLEMS I
2018/4/20
We study Mumford-Tate groups of families of Calabi-Yau manifolds in this notes, for example, we have interest in the relations between the geometry of families of Calabi-Yau manifolds and their Mumfor...
Seasonal variation of ascorbic acid and nitrate levels in selected basil (Ocimum basilicum L.) varieties
culinary herbs greenhouse production pot culture ascorbate-nitrate index
2018/3/6
The aim of this study was to determine the levels of ascorbic acid and total nitrates in the fresh aerial parts of different
varieties of basil (Ocimum basilicum L.) in different growing seasons. The...
2017 Workshop on Stability,Boundedness and Fano Varieties
2017 Workshop Stability,Boundedness and Fano Varieties
2017/3/28
The research on Fano variety is always a central topic in mathematics. In the recent years, there has been vast progress in the the problems on boundedness,stability and moduli space.The primary goal ...