Results 31 to 40 of about 41,370 (259)

Controlling the direction of topological transport in a non-Hermitian time-reversal symmetric Floquet ladder

open access: yesAPL Photonics, 2021
We propose a one-dimensional Floquet ladder that possesses two distinct topological transport channels with opposite directionality. The transport channels occur due to a Z2 non-Hermitian Floquet topological phase that is protected by time-reversal ...
B. Höckendorf, A. Alvermann, H. Fehske
doaj   +1 more source

Synthesis of Seven Indolizine-Derived Pentathiepines: Strong Electronic Structure Response to Nitro Substitution in Position C-9

open access: yesMolecules, 2023
Seven new 1,2,3,4,5-pentathiepino[6,7-a]indolizines were synthesized in which the pentathiepine moieties bear an indolizine backbone that is derivatized from C–H to F-, Cl-, Br-, I-, NO2-, and CH3-substitutions, respectively, in a meta position relative ...
Roberto Tallarita   +6 more
doaj   +1 more source

On the equality of Hausdorff measure and Hausdorff content [PDF]

open access: yesJournal of Fractal Geometry, Mathematics of Fractals and Related Topics, 2015
We are interested in situations where the Hausdor measure and Hausdorff content of a set are equal in the critical dimension. Our main result shows that this equality holds for any subset of a self-similar set corresponding to a nontrivial cylinder of an irreducible subshift of finite type, and thus also for any self-similar or graph-directed self ...
Farkas, Ábel, Fraser, Jonathan M
openaire   +3 more sources

Hausdorff vs Gromov-Hausdorff distances

open access: yes, 2023
Let $M$ be a closed Riemannian manifold and let $X\subseteq M$. If the sample $X$ is sufficiently dense relative to the curvature of $M$, then the Gromov-Hausdorff distance between $X$ and $M$ is bounded from below by half their Hausdorff distance, namely $d_{GH}(X,M) \ge \frac{1}{2} d_H(X,M)$.
Adams, Henry   +3 more
openaire   +2 more sources

ON $q$-HAUSDORFF MATRICES

open access: yesTaiwanese Journal of Mathematics, 2011
The q-Hausdorff matrices are defined in terms of symbols from q-mathematics. The matrices become ordinary Hausdorrf matrices as q -> 1. In this paper, we consider the q-analogues of the Cesaro matrix of order one, both for 0 < q < 1 and q > 1, and obtain the lower bounds for these matrices for any 1 < p < infinity.
Selmanogullari, T.   +2 more
openaire   +5 more sources

Hölder differentiability of self-conformal devil's staircases [PDF]

open access: yes, 2014
In this paper we consider the probability distribution function of a Gibbs measure supported on a self-conformal set given by an iterated function system (devil's staircase) applied to a compact subset of ℝ. We use thermodynamic multifractal formalism to
Troscheit, S., Sascha Troscheit
core   +1 more source

Directed graph iterated function systems [PDF]

open access: yes, 2011
This thesis concerns an active research area within fractal geometry. In the first part, in Chapters 2 and 3, for directed graph iterated function systems (IFSs) defined on ℝ, we prove that a class of 2-vertex directed graph IFSs have attractors that ...
Boore, Graeme C.
core   +2 more sources

Hausdorff measures: area formula and coarea formula [PDF]

open access: yes, 2022
openQuesta tesi si propone di applicare le misure di Hausdorff per dimostrare due formule: la formula dell'area e la formula di coarea nel caso generale, ovvero per funzioni lipschtziane.
FAVARO, GABRIELE
core  

Peroxynitrous Acid Generated In Situ from Acidified H2O2 and NaNO2. A Suitable Novel Antimicrobial Agent?

open access: yesAntibiotics, 2021
Peroxynitrite (ONOO−) and peroxynitrous acid (ONOOH) are known as short acting reactive species with nitrating and oxidative properties, which are associated with their antimicrobial effect.
Martina Balazinski   +3 more
doaj   +1 more source

Hausdorff Measurable Multifunctions

open access: yesJournal of Mathematical Analysis and Applications, 1998
Several notions of measurability for multifunctions are introduced and their relations are explained. The main results concern multifunctions \(F\) defined on the product of two separable complete metric spaces, \(T\) and \(X\). The space \(T\) is endowed with the \(\sigma\)-algebra of measurable sets of a Borel measure \(\mu\) and \(X\) with the ...
PIANIGIANI, GIULIO, F. DE BALSI
openaire   +3 more sources

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