Results 41 to 50 of about 1,037,799 (310)

Joins for (Augmented) Simplicial Sets [PDF]

open access: yes, 1999
We introduce a notion of join for (augmented) simplicial sets generalising the classical join of geometric simplicial complexes. The definition comes naturally from the ordinal sum on the base simplicial category $\Delta$.Comment: 8 ...
Ehlers, P. J., Porter, T.
core   +2 more sources

On minimal self-joinings in topological dynamics [PDF]

open access: yesErgodic Theory and Dynamical Systems, 1987
AbstractIf X is a compact metric space and T a homeomorphism of X we say (X, T) has almost minimal power joinings (AMPJ) if there is a dense GδX* in X such that for each finite set k, x∈(X*)k and l:k → ℤ−{0}, the orbit closure cl {} is a product of off-diagonals (POOD) on Xk. By an offdiagonal on Xk′, k′k we mean a set of the form (⊗,j∈k′Tm(j))Δ, Δ the
openaire   +1 more source

Optimized Particle Swarm Optimization Algorithm for the Realization of an Enhanced Energy-Aware Location-Aided Routing Protocol in MANET

open access: yesInformation, 2020
Mobile Ad-hoc Network (MANETs) is a wireless network topology with mobile network nodes and movable communication routes. In addition, the network nodes in MANETs are free to either join or leave the network.
Taj-Aldeen Naser Abdali   +5 more
doaj   +1 more source

Real-Time Spatial Queries for Moving Objects Using Storm Topology

open access: yesISPRS Int. J. Geo Inf., 2016
With the rapid development of mobile data acquisition technology, the volume of available spatial data is growing at an increasingly fast pace. The real-time processing of big spatial data has become a research frontier in the field of Geographic ...
Feng Zhang   +6 more
semanticscholar   +1 more source

Joins of DGA modules and sectional category [PDF]

open access: yes, 2006
We construct an explicit semifree model for the fiber join of two fibrations p: E --> B and p': E' --> B from semifree models of p and p'. Using this model, we introduce a lower bound of the sectional category of a fibration p which can be calculated ...
Ghienne, Pierre   +3 more
core   +3 more sources

Presenting dcpos and dcpo algebras [PDF]

open access: yes, 2008
Dcpos can be presented by preorders of generators and inequational relations expressed as covers. Algebraic operations on the generators (possibly with their results being ideals of generators) can be extended to the dcpo presented, provided the covers ...
Jung, Achim   +2 more
core   +1 more source

On Valency-Based Molecular Topological Descriptors of Subdivision Vertex-Edge Join of Three Graphs [PDF]

open access: yesSymmetry, 2020
In the studies of quantitative structure–activity relationships (QSARs) and quantitative structure–property relationships (QSPRs), graph invariants are used to estimate the biological activities and properties of chemical compounds. In these studies, degree-based topological indices have a significant place among the other descriptors because of the ...
Juan L. G. Guirao   +3 more
openaire   +2 more sources

Hochster duality in derived categories and point-free reconstruction of schemes [PDF]

open access: yes, 2015
For a commutative ring $R$, we exploit localization techniques and point-free topology to give an explicit realization of both the Zariski frame of $R$ (the frame of radical ideals in $R$) and its Hochster dual frame, as lattices in the poset of ...
Kock, Joachim, Pitsch, Wolfgang
core   +1 more source

The Bi-Compact-Open Topology on C(X)

open access: yes, 2016
For the set C(X) of real-valued continuous functions on a Tychonoff space X, the compact-open topology on C(X) is a "set-open topology". This paper studies the separation and countability properties of the space C(X) having the topology given by the join
Jindal, Anubha, Kundu, S., McCoy, R. A.
core   +1 more source

An Efficient Tree-Based Self-Organizing Protocol for Internet of Things

open access: yesIEEE Access, 2016
Tree networks are widely applied in sensor networks of Internet of Things (IoTs). This paper proposes an efficient tree-based self-organizing protocol (ETSP) for sensor networks of IoTs.
Tie Qiu   +4 more
doaj   +1 more source

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