Results 21 to 30 of about 4,217,963 (196)
Groups with many Subgroups which are Commensurable with some Normal Subgroup [PDF]
A subgroup H of a group G is called commensurable with a normal subgroup (cn) if there is N C G such that |HN/(H ∩ N)| is finite. We characterize generalized radical groups G which have one of the following finiteness conditions: (A) the minimal ...
Ulderico Dardano, Silvana Rinauro
doaj +1 more source
Twisted conjugacy in linear algebraic groups II [PDF]
Let $G$ be a linear algebraic group over an algebraically closed field $k$ and $\mathrm{Aut}_{\mathrm{alg}}(G)$ the group of all algebraic group automorphisms of $G$. For every $\varphi\in \mathrm{Aut}_{\mathrm{alg}}(G)$ let $\mathcal{R}(\varphi)$ denote
Sushil Bhunia, A. Bose
semanticscholar +1 more source
Functorial properties of Putnam's homology theory for Smale spaces [PDF]
We investigate functorial properties of Putnam's homology theory for Smale spaces. Our analysis shows that the addition of a conjugacy condition is necessary to ensure functoriality.
Deeley, Robin J. +2 more
core +3 more sources
Topological model of composite fermions in the cyclotron band generator picture: New insights
A combinatorial group theory in the braid groups is correlated with the unusual “anyon” statistic of particles in 2D Hall system in the fractional quantum regime well.
Beata Staśkiewicz
doaj +1 more source
Groups with reality and conjugacy conditions
Many results were proved on the structure of finite groups with some restrictions on their real elements and on their conjugacy classes. We generalize a few of these to some classes of infinite groups. We study groups in which real elements are central, groups in which real elements are 2-elements, groups in which all non-trivial classes have the same ...
D. CHILLAG +2 more
openaire +3 more sources
Conjugacy of real diffeomorphisms. A survey [PDF]
Given a group G, the conjugacy problem in G is the problem of giving an effective procedure for determining whether or not two given elements f, g of G are conjugate, i.e. whether there exists h belonging to G with fh = hg.
O'Farrell, Anthony G., Roginskaya, Maria
core +2 more sources
The spectral form of the Dai-Yuan conjugate gradient algorithm [PDF]
Conjugate Gradient (CG) methods comprise a class of unconstrained optimization algorithms which are characterized by low memory requirements and strong local and global convergence properties.
Abdul-Ghafoor J. Salem, Khalil K. Abbo
doaj +1 more source
A sufficient condition for conjugacy of metric automorphisms [PDF]
From the author's introduction: In this paper we take an idea of \textit{G.-C. Rota}'s [Proc. Am. Math. Soc. 13, 659--662 (1962; Zbl 0117.10404)] and define a ``universal'' metric automorphism on a product space such that if \(T\) is any metric automorphism of one of the factor spaces there is an invariant subalgebra of the domain of the universal ...
openaire +2 more sources
A New Three–Term Conjugate Gradient Method with Descent Direction for Unconstrained Optimization
In this paper, we propose a three–term PRP–type conjugate gradient method which always satisfies the sufficient descent condition independently of line searches employed.
XiaoLiang Dong +4 more
doaj +1 more source
A finiteness condition for verbal conjugacy classes in a group
JOSE M. MUNOZ-ESCOLANO, PAVEL SHUMYATSKY
openaire +2 more sources

