Results 101 to 110 of about 14,964 (295)

Solid Harmonic Wavelet Bispectrum for Image Analysis

open access: yesAdvanced Science, EarlyView.
The Solid Harmonic Wavelet Bispectrum (SHWB), a rotation‐ and translation‐invariant descriptor that captures higher‐order (phase) correlations in signals, is introduced. Combining wavelet scattering, bispectral analysis, and group theory, SHWB achieves interpretable, data‐efficient representations and demonstrates competitive performance across texture,
Alex Brown   +3 more
wiley   +1 more source

Embedding Cartesian Products of Graphs into de Bruijn Graphs [PDF]

open access: yes, 1997
Given a Cartesian product G = G 1 \Theta : : : \Theta Gm (m 2) of nontrivial connected graphs G i and the n--dimensional base B de Bruijn graph D = DB (n), it is investigated whether or not G is a spanning subgraph of D. Special attention is given to
Schreiber, Gerald   +5 more
core   +1 more source

Neural Fields for Highly Accelerated 2D Cine Phase Contrast MRI

open access: yesAdvanced Science, EarlyView.
ABSTRACT 2D cine phase contrast (CPC) MRI provides quantitative information on blood velocity and flow within the human vasculature. However, data acquisition is time‐consuming, motivating the reconstruction of the velocity field from undersampled measurements to reduce scan times. In this work, neural fields are proposed as a continuous spatiotemporal
Pablo Arratia   +7 more
wiley   +1 more source

Dominating Cartesian products of cycles [PDF]

open access: yes, 1995
Let γ(G) be the domination number of a graph G and let G □ H denote the Cartesian product of graphs G and H. We prove that γ(X) = (Πmk = 1nk)(2m + 1), where X = C1□C2□ … □ Cm and all nk = ¦Ck¦, 1 ⩽ k ⩽ m, are multiples of 2m + 1.
Seifter, Norbert, Klavžar, Sandi
core   +1 more source

Two problems on varieties of groups generated by wreath products

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2002
We outline results on varieties of groups generated by Cartesian and direct wreath products of abelian groups and pose two problems related to our recent results in that direction. A few related topics are also considered.
Vahagn H. Mikaelian
doaj   +1 more source

The exponent of Cartesian product of cycles

open access: yesApplied Mathematics Letters, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Byeong Moon Kim   +2 more
openaire   +2 more sources

Synergistic Spin‐Polarization and Single‐Atom Engineering in Magnetic Heterojunctions for Efficient Solar Water Splitting

open access: yesAdvanced Science, EarlyView.
High‐throughput screening led to the identification of 67 Z‐scheme heterojunctions (comprising 2D magnetic transition metal halides and non‐magnetic transition metal chalcogenides). For CrI3/MoTe2 and CrI3/WTe2, electronic structure analysis demonstrated that synergistic crystallographic point group and built‐in electric field effects generate a ...
Hongyang Ren   +8 more
wiley   +1 more source

Persistent homology based Bottleneck distance in hypergraph products

open access: yesApplied Network Science
In this paper, we extended the technique of measuring similarity between topological spaces using bottle neck distance between persistence diagrams to hypergraph networks. Finding a relationship between the bottleneck distance of the Cartesian product of
Archana Babu, Sunil Jacob John
doaj   +1 more source

Extending partial edge colorings of iterated cartesian products of cycles and paths [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science
We consider the problem of extending partial edge colorings of iterated cartesian products of even cycles and paths, focusing on the case when the precolored edges satisfy either an Evans-type condition or is a matching.
Carl Johan Casselgren   +2 more
doaj   +1 more source

Interlayer‐Sliding‐Enabled Multiferroicity and Giant Switchable Anomalous Hall Conductivity in RuO2Zn2F2 Bilayer

open access: yesAdvanced Science, EarlyView.
Interlayer sliding in the RuO2Zn2F2 bilayer induces ferroelectricity and enables reversible valley polarization switching. The electric dipole and valley‐resolved band edges are intimately coupled, revealing sliding ferroelectricity as a powerful mechanism for electrical control of valley degrees of freedom in 2D materials.
Djamel Bezzerga   +3 more
wiley   +1 more source

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