Results 41 to 50 of about 274,570 (306)
Stability of coincidence points and properties of covering mappings
, 2020 Properties of closed set-valued covering mappings acting from one metric space into another are studied. Under quite general assumptions, it is proved that, if a given α-covering mapping and a mapping satisfying the Lipschitz condition with constant β 0.
Arutyunov A.V.
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On Covering Properties in Variational Analysis and Optimization
, 2020 The paper is devoted to investigation of covering mappings in metric spaces. In the first part of the paper different covering properties are compared to each other.
Zhukovskiy S.
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Weak covering and the tree property [PDF]
Archive for Mathematical Logic, 1999 Suppose that there's no transitive model of ZFC + there's a strong cardinal, and let K denote the core model. It is shown that if δhas the tree property then δ^{+K} = δ^+ and δis weakly compact in K.
openaire +3 more sources
Menger's covering property and groupwise density [PDF]
Journal of Symbolic Logic, 2006 AbstractWe establish a surprising connection between Menger's classical covering property and Blass-Laflamme's modern combinatorial notion of groupwise density. This connection implies a short proof of the groupwise density bound on the additivity number for Menger's property.
Boaz Tsaban, Lyubomyr Zdomskyy
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Tau acetylation at K331 has limited impact on tau pathology in vivo
FEBS Letters, EarlyView.We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto +3 more
wiley +1 more source
Extensions to emergency vehicle location models [PDF]
, 2003 This paper is concerned with extending models for the Maximal Covering Location Problem in two ways. First, the usual 0-1 coverage definition is replaced by the probability of covering a demand within the target time.
Rand, G K, Alsalloum, O I
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Diversity and complexity in neural organoids
FEBS Letters, EarlyView.Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley +1 more source
FEBS Letters, EarlyView.Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil +4 more
wiley +1 more source
Characterizations of four covering properties by products
, 1992 In the present paper, the four covering properties of topological spaces are paracompactness, subparacompactness, metacompactness and submetacompactness.
Yajima, Yukinobu
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Selection principles and bitopological hyperspaces
Applied General Topology, 2023 In this paper we continue to research relationships between closure-type properties of hyperspaces over a space X and covering properties of X. For a Hausdorff space X we denote by 2X the family of all closed subsets of X.
Alexander V. Osipov
doaj +1 more source