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pro vyhledávání: '"Janelidze, A A"'
In this paper, we revisit the 1979 work of Isbell on subfactors of groups and their projections, which he uses to establish a stronger formulation of the butterfly lemma and its consequence, the refinement theorem for subnormal series of subgroups. W
Externí odkaz:
http://arxiv.org/abs/2408.05731
In point-free topology, one abstracts the poset of open subsets of a topological space, by replacing it with a frame (a complete lattice, where meet distributes over arbitrary join). In this paper we propose a similar abstraction of the posets of con
Externí odkaz:
http://arxiv.org/abs/2406.16923
We characterize effective descent morphisms of what we call filtered preorders, and apply these results to slightly improve a known result, due to the first author and F. Lucatelli Nunes, on the effective descent morphisms in lax comma categories of
Externí odkaz:
http://arxiv.org/abs/2312.14315
Autor:
Janelidze, Zurab
In this paper we construct a wide class of examples of \emph{pretorsion theories} in the sense of A. Facchini, C. Finocchiaro, and M. Gran. Given a category $\mathbb{C}$ with a terminal object $1$ and a category $\mathbb{D}$ with an initial object $0
Externí odkaz:
http://arxiv.org/abs/2311.02666
Autor:
Janelidze, George, Sobral, Manuela
By a closure space we will mean a pair $(A,\mathcal{C})$, in which $A$ is a set and $\mathcal{C}$ a set of subsets of $A$ closed under arbitrary intersections. The purpose of this paper is to initiate a development of descent theory of closure spaces
Externí odkaz:
http://arxiv.org/abs/2310.16636
Autor:
Janelidze, George
The purpose of this paper is to initiate a development of a new non-pointed counterpart of semi-abelian categorical algebra. We are making, however, only the first step in it by giving equivalent definitions of what we call ideally exact categories,
Externí odkaz:
http://arxiv.org/abs/2308.06574
Autor:
Janelidze, George, Sobral, Manuela
For a commutative semiring S, by an S-algebra we mean a commutative semiring A equipped with a homomorphism from S to A. We show that the subvariety of S-algebras determined by the identities 1+2x=1 and x^2=x is closed under non-empty colimits. The (
Externí odkaz:
http://arxiv.org/abs/2307.04383
Autor:
Roman Sattarov, Megan Havers, Camilla Orbjörn, Erik Stomrud, Shorena Janelidze, Thomas Laurell, Niklas Mattsson-Carlgren
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-18 (2024)
Abstract Alzheimer’s disease (AD) is a debilitating neurodegenerative disorder characterized by brain aggregation of β-amyloid (Aβ) peptides and phosphorylated tau (P-tau) proteins. Extracellular vesicles (EVs) can be isolated and studied for pot
Externí odkaz:
https://doaj.org/article/59e547163a534427b4267f0eb07f69ea
Autor:
Anika Wuestefeld, Alexa Pichet Binette, Danielle van Westen, Olof Strandberg, Erik Stomrud, Niklas Mattsson-Carlgren, Shorena Janelidze, Ruben Smith, Sebastian Palmqvist, Hannah Baumeister, David Berron, Paul A. Yushkevich, Oskar Hansson, Nicola Spotorno, Laura E.M. Wisse
Publikováno v:
Alzheimer’s Research & Therapy, Vol 16, Iss 1, Pp 1-12 (2024)
Abstract Background The medial temporal lobe (MTL) is hypothesized to be relatively spared in early-onset Alzheimer’s disease (EOAD). Yet, detailed examination of MTL subfields and drivers of atrophy in amnestic EOAD is lacking. Methods BioFINDER-2
Externí odkaz:
https://doaj.org/article/b9abd4ab96174d0c88ed8964d092f79e
Autor:
Lyduine E. Collij, Sophie E. Mastenbroek, Niklas Mattsson-Carlgren, Olof Strandberg, Ruben Smith, Shorena Janelidze, Sebastian Palmqvist, Rik Ossenkoppele, Oskar Hansson
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-9 (2024)
Abstract Identifying concomitant Lewy body (LB) pathology through seed amplification assays (SAA) might enhance the diagnostic and prognostic work-up of Alzheimer’s disease (AD) in clinical practice and trials. This study examined whether LB pathol
Externí odkaz:
https://doaj.org/article/b424508f5d0d443ba15018c78ace4615