Results 41 to 50 of about 2,795,826 (229)
Separability in consistent truncations
The separability of the Hamilton-Jacobi equation has a well-known connection to the existence of Killing vectors and rank-two Killing tensors. This paper combines this connection with the detailed knowledge of the compactification metrics of consistent ...
Krzysztof Pilch+2 more
doaj +1 more source
On the K-theory of twisted higher-rank-graph C*-algebras [PDF]
We investigate the K-theory of twisted higher-rank-graph algebras by adapting parts of Elliott's computation of the K-theory of the rotation algebras.
Aidan Sims+24 more
core +3 more sources
Left-ordered inp-minimal groups [PDF]
We prove that any left-ordered inp-minimal group is abelian, and we provide an example of a non-abelian left-ordered group of dp-rank 2.
arxiv +1 more source
Rings associated to coverings of finite p-groups [PDF]
In general the endomorphisms of a non-abelian group do not form a ring under the operations of addition and composition of functions. Several papers have dealt with the ring of functions defined on a group which are endomorphisms when restricted to the ...
Walls, Gary, Wang, Linhong
core +1 more source
Valuations and rank of ordered abelian groups [PDF]
It is shown that there exists an ordered abelian group that has no smallest positive element and that has no sequence of nonzero elements converging to zero. Some formulae for the rank of ordered abelian groups have been derived and a necessary condition for an order type to be rank of an ordered abelian group has been discussed.
openaire +2 more sources
Groups whose proper subgroups of infinite rank have polycyclic-by-finite conjugacy classes [PDF]
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
Compact K\"ahler manifolds admitting large solvable groups of automorphisms
Let G be a group of automorphisms of a compact K\"ahler manifold X of dimension n and N(G) the subset of null-entropy elements. Suppose G admits no non-abelian free subgroup.
Dinh, Tien-Cuong, Hu, Fei, Zhang, De-Qi
core +1 more source
Averaging sequences and abelian rank in amenable groups [PDF]
7 pages; to appear in Israel Journal of ...
openaire +4 more sources
When rational sections become cyclic — Gauge enhancement in F-theory via Mordell-Weil torsion
We explore novel gauge enhancements from abelian to non-simply-connected gauge groups in F-theory. To this end we consider complex structure deformations of elliptic fibrations with a Mordell-Weil group of rank one and identify the conditions under which
Florent Baume+3 more
doaj +1 more source
Commutator Length of Finitely Generated Linear Groups
The commutator length “cl(𝐺)” of a group 𝐺 is the least natural number 𝑐 such that every element of the derived subgroup of 𝐺 is a product of 𝑐 commutators.
Mahboubeh Alizadeh Sanati
doaj +1 more source