Results 71 to 80 of about 146,227 (164)

Notes on nilspaces: algebraic aspects

open access: yesDiscrete Analysis, 2017
Notes on nilspaces: algebraic aspects, Discrete Analysis 2017:15, 59 pp. One of the fundamental insights in modern additive combinatorics is that there is a hierarchy of notions of "pseudorandomness" or "higher order Fourier uniformity" that can be ...
Pablo Candela
doaj   +1 more source

Predictive geographic multicast routing protocol in flying ad hoc networks

open access: yesInternational Journal of Distributed Sensor Networks, 2019
In the past decades, the unmanned aerial systems have been utilized only for military operations. However, recently, the potential uses and applicability of unmanned aerial vehicles (commonly known as drones) in civilian application domains are becoming ...
Hassen Redwan Hussen   +3 more
doaj   +1 more source

Construct and Query A Fine-Grained Geospatial Knowledge Graph

open access: yesData Science and Engineering
In this paper, we propose the fine-grained geospatial knowledge graph (FineGeoKG), which can capture the neighboring relations between geospatial objects. We call such neighboring relations strong geospatial relations (SGRs) and define six types of SGRs.
Bo Wei   +5 more
doaj   +1 more source

Algebraic and topological aspects of the singular twin group and its representations

open access: yes
In this article, we introduce the singular twin monoid and its corresponding group, constructed from both algebraic and topological perspectives. We then classify all complex homogeneous $2$-local representations of this constructed group. Moreover, we study the irreducibility of these representations and provide clear conditions under which ...
Nasser, Mohamad N., Chbili, Nafaa
openaire   +2 more sources

Homomorphism, substructure and ideal: Elementary but rigorous aspects of renormalization group or hierarchical structure of topological orders

open access: yes
We propose a general quantum Hamiltonian formalism of a renormalization group (RG) flow with an emphasis on generalized symmetry by interpreting the elementary relationship between homomorphism, quotient ring, and projection. In our formalism, the noninvertible nature of the ideal of a fusion ring realizing the generalized symmetry of an ultraviolet ...
Fukusumi, Yoshiki, Furuta, Yuma
openaire   +2 more sources

Delving into the ambiguity in lattice site assignment of aquo-H atom in the orthorhombic PPh3O.hemihydrate: A comparative account of three PPh3O.hemihydrate polymorphs

open access: yesResults in Chemistry
The structural parameters of the lattice water (∠H-O-H=141.79° and dO-H=0.896 Å) in the orthorhombic Fdd2 polymorph of PPh3O.hemihydrate as revealed by the Baures’s report more than three decades ago, considerably deviate from the standard bond ...
Ankita Sinha   +5 more
doaj   +1 more source

Some combinatorial aspects in algebraic topology and geometric group theory

open access: yes, 2018
The present Msc thesis deals with classical topics of topology and it has been written, referring to [C. Kosniowski, Introduction to Algebraic Topology, Cambridge University Press, 1980, Cambridge], which is a well known textbook of algebraic topology. It has been selected a list of main exercises from this reference, whose solutions were not directly ...
openaire   +1 more source

Topology-Based Biomarkers Accurately Predict Breast Cancer Outcome and Survival. [PDF]

open access: yesCancer Res
Singhal S   +15 more
europepmc   +1 more source

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