Browsing Institutt for matematiske fag by Journals "Journal of Mathematical Analysis and Applications"
Now showing items 1-10 of 10
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A non-local approach to waves of maximal height for the Degasperis-Procesi equation
(Journal article; Peer reviewed, 2019)We consider the non-local formulation of the Degasperis-Procesi equation , where L is the non-local Fourier multiplier operator with symbol . We show that all , pointwise travelling-wave solutions are bounded above by the ... -
C*-algebras associated to Boolean dynamical systems
(Journal article; Peer reviewed, 2017-01-18)The goal of these notes is to present theC∗-algebraC∗(B,L,θ) of a Boolean dynamical system(B,L,θ), that generalizes theC∗-algebra associated to labelled graphs introduced by Bates and Pask, and todetermine its simplicity, ... -
Catlin's boundary systems for sums of squares domains
(Peer reviewed; Journal article, 2023)For any given sum of squares domain in Cn , we reduce the complexity in Catlin's multitype techniques by giving a complete normalization of the geometry. Using this normalization result, we present a more elementary proof ... -
A converse to the Schwarz lemma for planar harmonic maps
(Peer reviewed; Journal article, 2021)A sharp version of a recent inequality of Kovalev and Yang on the ratio of the (H1)∗ and H4 norms for certain polynomials is obtained. The inequality is applied to establish a sharp and tractable sufficient condition for ... -
Decay and symmetry of solitary waves
(Peer reviewed; Journal article, 2022) -
Flow equivalence and orbit equivalence for shifts of finite type and isomorphism of their groupoids
(Journal article; Peer reviewed, 2018)We give conditions for when continuous orbit equivalence of one-sided shift spaces implies flow equivalence of the associated two-sided shift spaces. Using groupoid techniques, we prove that this is always the case for ... -
Maximal norm Hankel operators
(Peer reviewed; Journal article, 2024) -
Purely infinite crossed products by endomorphisms
(Journal article; Peer reviewed, 2014)We study the crossed product C*-algebra associated to injective endomorphisms, which turns out to be equivalent to study the crossed product by the dilated automorphism. We prove that the dilation of the Bernoulli p -shift ... -
Topological freeness for C*-correspondences
(Journal article; Peer reviewed, 2019)We study conditions that ensure uniqueness theorems of Cuntz–Krieger type for relative Cuntz–Pimsner algebras associated to a ⁎-correspondence X over a ⁎-algebra A. We give general sufficient conditions phrased in terms ... -
Yang-Mills connections on quantum Heisenberg manifolds
(Journal article; Peer reviewed, 2020)We investigate critical points and minimizers of the Yang-Mills functional YM on quantum Heisenberg manifolds Dc µν, where the Yang-Mills functional is defined on the set of all compatible linear connections on finitely ...