Results 31 to 40 of about 455,559 (284)

Finite rank and pseudofinite groups

open access: yes, 2018
It is proven that an infinite finitely generated group cannot be elementarily equivalent to an ultraproduct of finite groups of a given Pr\"ufer rank.
Palacín, Daniel
core   +1 more source

Logics of Finite Hankel Rank

open access: yes, 2015
We discuss the Feferman-Vaught Theorem in the setting of abstract model theory for finite structures. We look at sum-like and product-like binary operations on finite structures and their Hankel matrices.
A Durand   +29 more
core   +1 more source

Lie rank in groups of finite Morley rank with solvable local subgroups [PDF]

open access: yes, 2013
We prove a general dichotomy theorem for groups of finite Morley rank with solvable local subgroups and of Pr\"ufer p-rank at least 2, leading either to some p-strong embedding, or to the Pr\"ufer p-rank being exactly ...
Deloro, Adrien, Jaligot, Eric
core   +5 more sources

Groups whose proper subgroups of infinite rank have polycyclic-by-finite conjugacy classes [PDF]

open access: yesInternational Journal of Group Theory, 2016
A group G is said to be a (PF)C-group or to have polycyclic-by-finite conjugacy classes, if G/C_{G}(x^{G}) is a polycyclic-by-finite group for all xin G. This is a generalization of the familiar property of being an FC-group.
Mounia Bouchelaghem, Nadir Trabelsi
doaj  

Approximation by finite rank operators with ranges in co

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1993
In this paper the author characterizes all those spaces X, for which Kn(X,co) is proximinal in L(X,co). Some examples were found that satisfy this characterization.
Aref Kamal
doaj   +1 more source

On a Sufficient Condition for the Existence of a Periodic Part in the Shunkov Group

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2017
The group $ G $ is saturated with groups from the set of groups if any a finite subgroup $ K $ of $ G $ is contained in a subgroup of $ G $, which is isomorphic to some group in $ \mathfrak{X} $.
A.A. Shlepkin
doaj   +1 more source

Groups with minimax commutator subgroup [PDF]

open access: yesInternational Journal of Group Theory, 2014
A result of Dixon, Evans and Smith shows that if $G$ is a locally (soluble-by-finite) group whose proper subgroups are (finite rank)-by-abelian, then $G$ itself has this property, i.e. the commutator subgroup of~$G$ has finite rank.
Francesco de Giovanni, Trombetti
doaj  

Finite Rank Zᵈ Actions And The Loosely Bernoulli Property [PDF]

open access: yes, 1998
We define finite rank for Zᵈ actions and show that those finite rank actions with a certain tower shape are loosely Bernoulli for d ...
Johnson, Aimee S.A., Şahin, A. A.
core   +2 more sources

On conformal Jordan cells of finite and infinite rank

open access: yes, 2004
This work concerns in part the construction of conformal Jordan cells of infinite rank and their reductions to conformal Jordan cells of finite rank. It is also discussed how a procedure similar to Lie algebra contractions may reduce a conformal Jordan ...
I. Bakas   +6 more
core   +1 more source

Overview of molecular signatures of senescence and associated resources: pros and cons

open access: yesFEBS Open Bio, EarlyView.
Cells can enter a stress response state termed cellular senescence that is involved in various diseases and aging. Detecting these cells is challenging due to the lack of universal biomarkers. This review presents the current state of senescence identification, from biomarkers to molecular signatures, compares tools and approaches, and highlights ...
Orestis A. Ntintas   +6 more
wiley   +1 more source

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