Results 101 to 110 of about 53,696 (220)

Regularity and separation for Grušin‐type p‐Laplace operators

open access: yesMathematische Nachrichten, Volume 298, Issue 5, Page 1727-1757, May 2025.
Abstract We analyze p‐Laplace type operators with degenerate elliptic coefficients. This investigation includes Grušin‐type p‐Laplace operators. We describe a separation phenomenon in elliptic and parabolic p‐Laplace type equations, which provide an illuminating illustration of simple jump discontinuities of the corresponding weak solutions ...
Daniel Hauer, Adam Sikora
wiley   +1 more source

The Granger–Johansen representation theorem for integrated time series on Banach space

open access: yesJournal of Time Series Analysis, Volume 46, Issue 3, Page 432-457, May 2025.
We prove an extended Granger–Johansen representation theorem (GJRT) for finite‐ or infinite‐order integrated autoregressive time series on Banach space. We assume only that the resolvent of the autoregressive polynomial for the series is analytic on and inside the unit circle except for an isolated singularity at unity.
Phil Howlett   +4 more
wiley   +1 more source

Quantization on Nilpotent Lie Groups [PDF]

open access: yes, 2016
Topological Groups, Lie Groups; Abstract Harmonic Analysis; Functional Analysis; Mathematical ...
Ruzhansky, M, Fischer, V
openaire   +6 more sources

On the isomorphism problem for monoids of product‐one sequences

open access: yesBulletin of the London Mathematical Society, Volume 57, Issue 5, Page 1482-1495, May 2025.
Abstract Let G1$G_1$ and G2$G_2$ be torsion groups. We prove that the monoids of product‐one sequences over G1$G_1$ and over G2$G_2$ are isomorphic if and only if the groups G1$G_1$ and G2$G_2$ are isomorphic. This was known before for abelian groups.
Alfred Geroldinger, Jun Seok Oh
wiley   +1 more source

On the Mislin genus of certain circle bundles and noncancellation

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2000
In an earlier paper, the authors proved that a process described much earlier for passing from a finitely generated nilpotent group N of a certain kind to a nilpotent space X of finite type produced a bijection of Mislin genera 𝒢(N)≅𝒢(X).
Peter Hilton, Dirk Scevenels
doaj   +1 more source

A note on the normalizer of Sylow 2-subgroup of special linear group $SL_2(p^f)$ [PDF]

open access: yesInternational Journal of Group Theory, 2014
Let $G=SL_2(p^f)$ be a special linear group and $P$ be a Sylow $2$-subgroup of $G$, where $p$ is a prime and $f$ is a positive integer such that $p^f>3$. By $N_G(P)$ we denote the normalizer of $P$ in $G$.
Jiangtao Shi
doaj  

Some nilpotent and locally nilpotent matrix groups

open access: yesJournal of Pure and Applied Algebra, 1989
AbstractSay a division ring D is special if for every finite subset X of D there is a homomorphism of the subring of D generated by X into a division ring of finite Schur index a power of its positive characteristic. (D is not assumed to have positive characteristic.) We make a detailed study of nilpotent and locally nilpotent matrix groups over ...
openaire   +2 more sources

ON CO-HOPFIAN NILPOTENT GROUPS [PDF]

open access: yesBulletin of the London Mathematical Society, 2003
We characterize co-Hopfian finitely generated torsion free nilpotent groups in terms of their Lie algebra automorphisms, and construct many examples of such groups.
openaire   +4 more sources

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