Results 61 to 70 of about 52,812 (244)

Imbedded subgroups of abelian groups [PDF]

open access: yesJournal of the Australian Mathematical Society. Series A. Pure Mathematics and Statistics, 1990
AbstractA subgroupHof an abelianp–groupGis pure inGif the inclusion map ofHintoGis an isometry with respect to the (pseudo-) metrics onHandGassociated with theirp–adic topologies. In this paper, those subgroups (called here imbedded subgroups) of abelian groups for which the inclusion is a homeomorphism with respect to thep–adic topologies are studied,
W. P. Berlinghoff   +2 more
openaire   +1 more source

On the finite generation of ideals in tensor triangular geometry

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 5, May 2026.
Abstract Inspired by Cohen's characterization of Noetherian commutative rings, we study the finite generation of ideals in tensor triangular geometry. In particular, for an essentially small tensor triangulated category K$\mathcal {K}$ with weakly Noetherian spectrum, we show that every prime ideal in K$\mathcal {K}$ can be generated by finitely many ...
Tobias Barthel
wiley   +1 more source

On Groups Whose Irreducible Character Degrees of All Proper Subgroups are All Prime Powers

open access: yesJournal of Mathematics, 2021
Isaacs, Passman, and Manz have determined the structure of finite groups whose each degree of the irreducible characters is a prime power. In particular, if G is a nonsolvable group and every character degree of a group G is a prime power, then G is ...
Shitian Liu
doaj   +1 more source

Abelian Splittings and JSJ-Decompositions of Bestvina--Brady Groups

open access: yes, 2021
We give a characterization of Bestvina--Brady groups split over abelian subgroups and describe a JSJ-decomposition of Bestvina--Brady groups.Comment: Fix the proof of Theorem 3.
Chang, Yu-Chan
core  

On Abelian Subgroups ofp-Groups

open access: yesJournal of Algebra, 1998
Let \(p\) be a prime and let \(G\) be a finite \(p\)-group. Abelian subgroups of the group \(G\) are investigated here. The author generalizes and presents simplified proofs of almost all elementary lemmas from Section 8 of the odd order paper. In particular it is proved, that if \(A2\), and \(\mathcal U\) is the set of all abelian subgroups \(T\) of \(
openaire   +2 more sources

Wild conductor exponents of curves

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 5, May 2026.
Abstract We give an explicit formula for wild conductor exponents of plane curves over Qp$\mathbb {Q}_p$ in terms of standard invariants of explicit extensions of Qp$\mathbb {Q}_p$, generalising a formula for hyperelliptic curves. To do so, we prove a general result relating the wild conductor exponent of a simply branched cover of the projective line ...
Harry Spencer
wiley   +1 more source

Embedding of Abelian Subgroups in p-Groups [PDF]

open access: yesTransactions of the American Mathematical Society, 1971
Research concerning the embedding of abelian subgroups in p p -groups generally has proceeded in two directions; either considering abelian subgroups of small index (cf. J. L. Alperin, Large abelian subrgoups of p p -groups, Trans. Amer. Math. Soc. 117 (1965), 10-20) or considering elementary abelian subgroups of small
openaire   +2 more sources

The fundamental group of the complement of a generic fiber‐type curve

open access: yesJournal of the London Mathematical Society, Volume 113, Issue 5, May 2026.
Abstract In this paper, we describe and characterize the fundamental group of the complement of generic fiber‐type curves, that is, unions of (the closure of) finitely many generic fibers of a component‐free pencil F=[f:g]:CP2⤍CP1$F=[f:g]:\mathbb {C}\mathbb {P}^2\dashrightarrow \mathbb {C}\mathbb {P}^1$.
José I. Cogolludo‐Agustín   +1 more
wiley   +1 more source

Fuzzy Internal Direct Product

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2019
The purpose of this research is to show a constructive method for using known fuzzy groups as building blocks to form more fuzzy subgroups. As we shall describe employing this procedure with the fuzzy generating subgroups give us a large class of ...
L.N.M. Tawfiq
doaj  

Towards Donovan's conjecture for abelian defect groups

open access: yes, 2018
We define a new invariant for a $p$-block, the strong Frobenius number, which we use to address the problem of reducing Donovan's conjecture to normal subgroups of index p.
Eaton, Charles, Livesey, Michael
core   +1 more source

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