Results 51 to 60 of about 15,121,811 (367)
The topological Hawaiian earring group does not embed in the inverse limit of free groups
, 2005 Endowed with natural topologies, the fundamental group of the Hawaiian earring continuously injects into the inverse limit of free groups. This note shows the injection fails to have a continuous inverse.
Fabel, Paul Fabel
core +2 more sources
Groups, semilattices and inverse semigroups. I, II [PDF]
Transactions of the American Mathematical Society, 1974 An inverse semigroup S is called proper if the equations e a = e = e 2 ea = e = {e^2} together imply a 2 = a {a^2} = a for each a, a ,
openaire +2 more sources
Time after time – circadian clocks through the lens of oscillator theory
FEBS Letters, EarlyView.Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo +2 more
wiley +1 more source
Gait Initiation Impairment in Patients with Parkinson’s Disease and Freezing of Gait
Bioengineering, 2022 Freezing of gait (FOG) is a sudden episodic inability to produce effective stepping despite the intention to walk. It typically occurs during gait initiation (GI) or modulation and may lead to falls.
Chiara Palmisano +5 more
doaj +1 more source
Combinatorial Gelfand models for some semigroups and q-rook monoid algebras [PDF]
, 2007 Inspired by the results of [R. Adin, A. Postnikov, Y. Roichman, Combinatorial Gelfand model, preprint math.RT arXiv:0709.3962], we propose combinatorial Gelfand models for semigroup algebras of some finite semigroups, which include the symmetric inverse ...
Kudryavtseva, Ganna +1 more
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An extension and a generalization of Dedekind's theorem
, 2016 For any given finite abelian group, we give factorizations of the group determinant in the group algebra of any subgroup. The factorizations are an extension of Dedekind's theorem.
Yamaguchi, Naoya
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Bisimple Inverse Semigroups [PDF]
Transactions of the American Mathematical Society, 1968 In [1] Clifford showed that the structure of any bisimple inverse semigroup with identity is uniquely determined by that of its right unit subsemigroup. The object of this paper is to show that the structure of any bisimple inverse semigroup with or without identity is determined by that of any of its a-classes.
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Inverse limits of finite rank free groups [PDF]
Journal of Group Theory, 2012 Abstract.We will show that the inverse limit of finite rank free groups with surjective connecting homomorphism is isomorphic either to a finite rank free group or to a fixed universal group. In other words, any inverse system of finite rank free groups which is not equivalent to an eventually constant system has the universal group as its limit.
Conner, Gregory R., Kent, Curtis
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Molecular Oncology, EarlyView.This study integrates transcriptomic profiling of matched tumor and healthy tissues from 32 colorectal cancer patients with functional validation in patient‐derived organoids, revealing dysregulated metabolic programs driven by overexpressed xCT (SLC7A11) and SLC3A2, identifying an oncogenic cystine/glutamate transporter signature linked to ...
Marco Strecker +16 more
wiley +1 more source
Gonadal Dysfunction in Wolfram Syndrome: A Prospective Study
DiagnosticsBackground: Wolfram syndrome (WFS), also known as DIDMOAD, is a rare monogenic neurodegenerative disorder characterized by four key components: non-autoimmune insulin-dependent diabetes mellitus (DM), optic atrophy, sensorineural hearing loss, and ...
Gema Esteban-Bueno +1 more
doaj +1 more source