Results 71 to 80 of about 21,501,912 (352)
Forcing ℵ1-free groups to be free.
, 2021 ℵ1-free groups, abelian groups whose countable subgroups are free, are objects of both algebraic and set-theoretic interest. Illustrating this, we note that ℵ1-free groups, and in particular the question of when ℵ1-free groups are free, were central to ...
Pasi, Alexandra V., 1993-
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A comparative study for different age groups in learning free swimming [PDF]
مجلة الرافدين للعلوم الرياضية, 2007 The tow researchers used the experimental method and the sample had (43) learners during the summer – term teaching at the university of mosul swimming pool 2005 . The sample was divided into four groups according to age , first group (6 up to 9) years ,
Jassim AL-Roomy, Wathah AL-Sumaydaee
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Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation
FEBS Letters, EarlyView.Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe +3 more
wiley +1 more source
, 2002 It is not known whether or not the stable rational cohomology groups H*(Aut(F[infinity]);Q) always vanish (see Hatcher in [5] and Hatcher and Vogtmann in [7] where they pose the question and show that it does vanish in the first 6 dimensions).
Jensen, Craig A., C. A. Jensen
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On parafree residually free groups [PDF]
, 2022 Los grupos Parafree introducidos por Gilbert Baumslag en los años 60 comparten muchas propiedades con los grupos libres en un intento de resolver la conjetura de que un grupo de dimensión cohomológica uno es libre. Formalmente, se dice que un grupo es
Fernández Ayala, Óscar
core
On the residual solvability of generalized free products of solvable groups [PDF]
Discrete Mathematics & Theoretical Computer Science, 2011 special issue in honor of Laci Babai's 60th birthday: Combinatorics, Groups, Algorithms, and ...
Delaram Kahrobaei, Stephen Majewicz
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FEBS Letters, EarlyView.The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li +2 more
wiley +1 more source
Some Model Theory of Free Groups
, 2021 There are two main sets of results, both pertaining to the model theory of free groups. In the first set of results, we prove that non-abelian free groups of finite rank at least 3 or of countable rank are not A-homogeneous. We then build on the proof of
Natoli, Christopher James
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On finite state automaton actions of HNN extensions of free abelian groups
Karpatsʹkì Matematičnì Publìkacìï, 2021 HNN extensions of free abelian groups are considered. For arbitrary prime $p$ it is introduced a class of such extensions that act by finite automaton permutations over an alphabet $ \mathsf{X} $ of cardinality $p$ and belong to $p$-Sylow subgroup of the
V. Prokhorchuk
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