Results 41 to 50 of about 318 (158)

Polynomial Volume Growth of Quasi-Unipotent Automorphisms of Abelian Varieties (with an Appendix in Collaboration with Chen Jiang)

International Mathematics Research Notices, 2023
Abstract Let $X$ be an abelian variety over an algebraically closed field $\textbf{k}$ and $f$ a quasi-unipotent automorphism of $X$. When $\textbf{k}$ is the field of complex numbers, Lin, Oguiso, and D.-Q. Zhang provide an explicit formula for the polynomial volume growth of (or equivalently, for the Gelfand–Kirillov dimension of the ...
openaire   +3 more sources

Connected components of the space of flags of SO0(p,q)$\operatorname{SO}_0(p,q)$ transverse to a fixed pair and restrictions on Anosov subgroups

Journal of the London Mathematical Society, Volume 113, Issue 3, March 2026.
Abstract We count and give a parametrization of connected components in the space of flags transverse to a given transverse pair in every flag varieties of SO0(p,q)$\operatorname{SO}_0(p,q)$. We compute the effect the involution of the unipotent radical has on those components and, using methods of Dey–Greenberg–Riestenberg, we show that for certain ...
Clarence Kineider, Roméo Troubat
wiley   +1 more source

CD168 Identifies Proliferating Pancreatic Islet Cells in Murine and Human

Advanced Science, Volume 13, Issue 10, 18 February 2026.
This study identifies CD168 as a conserved surface marker for proliferating β‐cells in mouse, human islets, and pancreatic islet tumors. CD168⁺ cells show high proliferation and low insulin expression. CD168+ cells form mostly uni‐β lineage clones, and some of the clones are multi‐lineage.
Shubo Yuan, Jiafu Li, Min Shao, Haili Bao, Ajun Geng, Jialin Yang, Yu Tao, Xinyi Chen, Tianxiong Xiao, Chunye Liu, Zhiyao Xie, Wenqian Song, Qing Cissy Yu, Hongxing Fu, Xu Han, Taochen He, Wenquan Wang, Jianfeng Chen, Sheng Yan, Shaohua Song, Liang Liu, Yi Arial Zeng   +21 more
wiley   +1 more source

Orbital Varieties and Unipotent Representations

, 2006
Using the notion of a Lagrangian covering, W. Graham and D. Vogan proposed a method of constructing representations from the coadjoint orbits for a complex semisimple Lie group $G$. When the coadjoint orbit $\calO$ is nilpotent, a representation of $G$ is attached to each orbital variety of $\calO$ in this way.
openaire   +2 more sources

Cohomology of Deligne-Lusztig varieties for unipotent blocks of GL_{h}(k) [PDF]

Representation Theory, 2013
We study the cohomology of parabolic Deligne-Lusztig varieties associated to unipotent blocks of G L
openaire   +1 more source

The versal deformation of small resolutions of conic bundles over P1×P1${\mathbb {P}}^1\times {\mathbb {P}}^1$ with two sections blown down

Journal of the London Mathematical Society, Volume 113, Issue 2, February 2026.
Abstract Twistor spaces are certain compact complex three‐folds with an additional real fibre bundle structure. We focus here on twistor spaces over P2#P2#P2${\mathbb {P}}^2\#{\mathbb {P}}^2\#{\mathbb {P}}^2$. Such spaces are either small resolutions of double solids or they can be described as modifications of conic bundles.
Bernd Kreußler, Jan Stevens
wiley   +1 more source

Arithmetic geometry of character varieties with regular monodromy [PDF]

We count points on a family of smooth character varieties with regular semisimple and regular unipotent monodromies. We show that these varieties are polynomial count and obtain an explicit expression for their E-polynomials using complex ...
Puskas, Anna, Kamgarpour, Masoud, Nam, Gyeonhyeon   +2 more
core   +1 more source

Roles of Haematopoietic Stem Cell Transplantation in the Management of Blood Cancers

Advances in Hematology, Volume 2026, Issue 1, 2026.
Haematopoietic stem cell transplantation (HSCT) is an essential method used in the treatment of several haematological, immunological and metabolic disorders in both humans and animal patients. It serves as curative method for both benign and malignant haematological conditions. Blood cancers are haematological malignancies or liquid tumour that affect
Aliyu Ibrahim Bagudo, Ibrahim Kalle Kwaifa, Usman Rabiu, Omogboyegun Alaba Ayodeji, Abdullahi Aliyu, Suraiya Saleem   +5 more
wiley   +1 more source

Contributions to automorphisms of affine spaces [PDF]

, 2013
We study aspects of the group G_n of polynomial automorphisms of the affine space A^n, the so-called affine Cremona group. Shafarevich introduced on G_n the structure of an ind-variety, an infinite-dimensional analogon to a (classical) variety.
Stampfli, Immanuel
core   +1 more source

Key Steps in Murine Cardiac Engineering Validation: How Does It Affect the Efficiency of Cardiac Devices?

BioMed Research International, Volume 2026, Issue 1, 2026.
Acute myocardial infarction is one of the leading causes of death in the world. Owing to the limited regenerative capacity of the heart, the development of therapeutic devices using cell therapy and tissue engineering has gained importance. Preclinical validation of these devices can provide evidence of their safety and efficacy in implantation in ...
Nancy G. Viveros-Moreno, X. Fernanda Rodriguez-Reyes, Mario Garcia-Lorenzana, Marcela Salazar-García, Laura Villavicencio-Guzmán, Nohra E. Beltran-Vargas, Baisakhi Banerjee   +6 more
wiley   +1 more source