Results 31 to 40 of about 1,325 (162)

The bisymplectomorphism group of a bounded symmetric domain [PDF]

open access: yes, 2008
An Hermitian bounded symmetric domain in a complex vector space, given in its circled realization, is endowed with two natural symplectic forms: the flat form and the hyperbolic form.
A. J. Scala Di   +6 more
core   +2 more sources

On the sum of an idempotent and a tripotent in a quaternion algebra over the ring of integers modulo p [PDF]

open access: yesITM Web of Conferences
Let H be denoted as quaternions. Quaternions form an algebra over a ring R, as an extension of complex numbers into a four dimensional space, where H = {a0 + a1i + a2j + a3k | a0, a1, a2, a3 ∈ R}. A quaternion algebra, particularly defined over fields of
Lai Wei Kit   +2 more
doaj   +1 more source

Tripotents: a class of strongly clean elements in rings

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2018
Periodic elements in a ring generate special classes of strongly clean elements. In particular, elements b such that b = b3+, which are called tripotents and include idempotents, negative of idempotents and order 2 units, are strongly clean.
Călugăreanu Grigore
doaj   +1 more source

Direct Lineage Conversion of Adult Mouse Liver Cells and B Lymphocytes to Neural Stem Cells

open access: yesStem Cell Reports, 2014
Overexpression of transcription factors has been used to directly reprogram somatic cells into a range of other differentiated cell types, including multipotent neural stem cells (NSCs), that can be used to generate neurons and glia. However, the ability
John P. Cassady   +9 more
doaj   +1 more source

On Types of Invo Clean Rings: Review [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics
In this paper, three types of rings were reviewed: invo-clean, invo-t-clean and invo-k-clean, the ring invo-clean is invo-t-clean and invo-k-clean. Since invo-t-clean ring is invo-k-clean when k=3.
Mohammed Al-Neima, Raida Mahmood
doaj   +1 more source

Rationale and Methodology of Reprogramming for Generation of Induced Pluripotent Stem Cells and Induced Neural Progenitor Cells. [PDF]

open access: yes, 2016
Great progress has been made regarding the capabilities to modify somatic cell fate ever since the technology for generation of induced pluripotent stem cells (iPSCs) was discovered in 2006.
Biswas, Sangita   +3 more
core   +2 more sources

The human arthritic hip joint is a source of mesenchymal stromal cells (MSCs) with extensive multipotent differentiation potential

open access: yesBMC Musculoskeletal Disorders, 2020
Background While multiple in vitro studies examined mesenchymal stromal cells (MSCs) derived from bone marrow or hyaline cartilage, there is little to no data about the presence of MSCs in the joint capsule or the ligamentum capitis femoris (LCF) of the ...
Mike Wagenbrenner   +9 more
doaj   +1 more source

Weakly tripotent rings

open access: yes, 2017
Preliminary version; comments are ...
Breaz, Simion, Cîmpean, Andrada
openaire   +3 more sources

Mok's characteristic varieties and the normal holonomy group

open access: yes, 2017
In this paper we complete the study of the normal holonomy groups of complex submanifolds (non nec. complete) of Cn or CPn. We show that irreducible but non transitive normal holonomies are exactly the Hermitian s-representations of [CD09, Table 1] (see ...
Di Scala, Antonio J., Vittone, Francisco
core   +1 more source

Geometric characterization of $L_1$-spaces

open access: yes, 2013
The paper is devoted to a description of all strongly facially symmetric spaces which are isometrically isomorphic to $L_1$-spaces. We prove that if $Z$ is a real neutral strongly facially symmetric space such that every maximal geometric tripotent from ...
Ibragimov, Mukhtar   +2 more
core   +1 more source

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