Results 71 to 80 of about 422,054 (167)

Reorganization of the Brain Structural Covariance Network in Ischemic Moyamoya Disease Revealed by Graph Theoretical Analysis

Frontiers in Aging Neuroscience, 2022
ObjectiveIschemic moyamoya (MMD) disease could alter the cerebral structure, but little is known about the topological organization of the structural covariance network (SCN).
Peijing Wang, Peijing Wang, Peijing Wang, Peijing Wang, Wenjie Li, Wenjie Li, Wenjie Li, Wenjie Li, Huan Zhu, Huan Zhu, Huan Zhu, Huan Zhu, Xingju Liu, Xingju Liu, Xingju Liu, Xingju Liu, Tao Yu, Tao Yu, Tao Yu, Tao Yu, Dong Zhang, Dong Zhang, Dong Zhang, Dong Zhang, Yan Zhang, Yan Zhang, Yan Zhang, Yan Zhang   +27 more
doaj   +1 more source

A Coarse Geometric Approach to Graph Layout Problems

Journal of Graph Theory, Volume 113, Issue 2, Page 169-194, October 2026.
ABSTRACT We define a range of new coarse geometric invariants based on various graph–theoretic measures of complexity for finite graphs, including treewidth, pathwidth, cutwidth and bandwidth. We prove that, for bounded degree graphs, these invariants can be used to define functions which satisfy a strong monotonicity property, namely, they are ...
Wanying Huang, David Hume, Samuel J. Kelly, Ryan Lam   +3 more
wiley   +1 more source

Ferromagnetism in the vicinity of Lifshitz topological transitions [PDF]

Physical Review B, 2017
We show that the critical temperature of a ferromagnetic phase transition in a quasi-two-dimensional hole gas confined in a diluted magnetic semiconductor quantum well strongly depends on the hole chemical potential and hole density. The significant variations of the the Curie temperature occur close to the Lifshitz topological transition points where ...
Grigoryev, P.S., Glazov, M.M., Kavokin, A.V., Varlamov, A.A.   +3 more
openaire   +3 more sources

Signed Projective Cubes, a Homomorphism Point of View

Journal of Graph Theory, Volume 113, Issue 1, Page 38-56, September 2026.
ABSTRACT The (signed) projective cubes, as a special class of graphs closely related to the hypercubes, are on the crossroad of geometry, algebra, discrete mathematics and linear algebra. Defined as Cayley graphs on binary groups, they represent basic linear dependencies.
Meirun Chen, Reza Naserasr, Alessandra Sarti   +2 more
wiley   +1 more source

Multicritical Fermi Surface Topological Transitions [PDF]

Physical Review Letters, 2019
A wide variety of complex phases in quantum materials are driven by electron-electron interactions, which are enhanced through density of states peaks. A well known example occurs at van Hove singularities where the Fermi surface undergoes a topological transition.
Dmitry V. Efremov, Alex Shtyk, Andreas W. Rost, Claudio Chamon, Andrew P. Mackenzie, Joseph J. Betouras   +5 more
openaire   +6 more sources

Genome–phenome association prediction using weighted deep matrix factorization with a multisource graph attention network

Quantitative Biology, Volume 14, Issue 3, September 2026.
Abstract Genome–phenome association (GPA) prediction can broaden the understanding of biological mechanisms underlying complex phenotypic traits (e.g., diseases and agronomic traits). Traditional deep matrix factorization (DMF)‐based GPA methods can integrate multiple data types and uncover nonlinear associations but often rely on low‐dimensional ...
Ran Duan, Wei Cao, Maozu Guo, Le Tian, Lingling Zhao   +4 more
wiley   +1 more source

Supercyclic Weighted Translations on Quotient Spaces

Axioms
In this note, we give the sufficient and necessary condition for weighted translations on the Orlicz spaces of quotient spaces to be supercyclic. By applying this characterization of supercyclicity, the descriptions of hypercyclicity, topological mixing ...
AliReza Bagheri Salec, Chung-Chuan Chen, Seyyed Mohammad Tabatabaie, Zahra Saeed Abdulazeez Alfaikhrani   +3 more
doaj   +1 more source

Do economic shocks spread randomly?: A topological study of the global contagion network.

PLoS ONE, 2020
The spread of economic shocks in an increasingly interconnected global economy has been subject to several studies recently. These studies mostly focus on the synchronization of business cycles among economies and search for the relationship between ...
Tamás Sebestyén, Zita Iloskics
doaj   +1 more source

Towards a theory of presence

Noûs, Volume 60, Issue 3, Page 511-535, September 2026.
Abstract The present paper presents a new (formal) theory of presence according to which, roughly, to be present at a place is to have a delegate located at that place. One crucial feature of the theory is that something can be present at a place without thereby being located there.
Claudio Calosi
wiley   +1 more source

Topology Dependent Quantities at the Anderson Transition [PDF]

Physical Review Letters, 2000
The boundary condition dependence of the critical behavior for the three dimensional Anderson transition is investigated. A strong dependence of the scaling function and the critical conductance distribution on the boundary conditions is found, while the critical disorder and critical exponent are found to be independent of the boundary conditions.
Slevin, Keith, Ohtsuki, Tomi, Kawarabayashi, Tohru   +2 more
openaire   +3 more sources