Results 21 to 30 of about 11,192 (262)

The complex hyperbolic geometry of the moduli space of cubic surfaces [PDF]

open access: yesJournal of Algebraic Geometry, 2002
We prove that the moduli space of semistable cubic surfaces over the complex numbers is biholomorphic to the Satake compactification of the quotient of the four-ball by the projective unitary group of the standard Hermitian form of signature
Allcock, Daniel   +2 more
openaire   +3 more sources

A nonuniform popularity-similarity optimization (nPSO) model to efficiently generate realistic complex networks with communities

open access: yesNew Journal of Physics, 2018
The investigation of the hidden metric space behind complex network topologies is a fervid topic in current network science and the hyperbolic space is one of the most studied, because it seems associated to the structural organization of many real ...
Alessandro Muscoloni   +1 more
doaj   +1 more source

Characterization and optimization of satellite complex networks based on hyperbolic space

open access: yesDigital Communications and Networks
In recent years, the rapid advancement of mega-constellations in Low Earth Orbit (LEO) has led to the emergence of satellite communication networks characterized by a complex interplay between high- and low-altitude orbits and by unprecedented scale ...
Yuanzhi He   +5 more
doaj   +1 more source

Mixed foliate CR-submanifolds in a complex hyperbolic space are non-proper

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1988
It was conjectured in [1 II] (also in [2]) that mixed foliate CR-submanifolds in a complex hyperbolic space are either complex submanifolds or totally real submanifolds. In this paper we give an affirmative solution to this conjecture.
Bang-Yen Chen, Bao-Qiang Wu
doaj   +1 more source

Application of an integral formula to CR-submanifolds of complex hyperbolic space

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2005
The purpose of this paper is to study n-dimensional compact CR-submanifolds of complex hyperbolic space CH(n+p)/2, and especially to characterize geodesic hypersphere in CH(n+1)/2 by an integral formula.
Jin Suk Pak, Hyang Sook Kim
doaj   +1 more source

Representation in Fréchet Spaces of Hyperbolic Theta and Integral Operator Bases for Polynomials [PDF]

open access: yesAssiut University Journal of Multidisciplinary Scientific Research
In this study, we present a novel definition for hyperbolic Theta operator bases (HTOBs)and hyperbolic integral operator bases (HIOBs) within the context of complex calculus. Weemploy the constructed HTOBs and HIOBs on a specific base of polynomials (BPs)
Gamal Hassan
doaj   +1 more source

The Busemann–Petty problem in the complex hyperbolic space [PDF]

open access: yesMathematical Proceedings of the Cambridge Philosophical Society, 2013
AbstractThe Busemann–Petty problem asks whether origin-symmetric convex bodies in ℝn with smaller central hyperplane sections necessarily have smaller volume. The answer is affirmative if n ≤ 4 and negative if n ≥ 5. We study this problem in the complex hyperbolic n-space ℍnℂ and prove that the answer is affirmative for n ≤ 2 and negative for n ≥ 3.
openaire   +2 more sources

Navigable maps of structural brain networks across species.

open access: yesPLoS Computational Biology, 2020
Connectomes are spatially embedded networks whose architecture has been shaped by physical constraints and communication needs throughout evolution. Using a decentralized navigation protocol, we investigate the relationship between the structure of the ...
Antoine Allard, M Ángeles Serrano
doaj   +1 more source

Routing Strategy of Integrated Satellite-Terrestrial Network Based on Hyperbolic Geometry

open access: yesIEEE Access, 2020
The integrated satellite-terrestrial network has the characteristics of large scale, complex, high dynamic and heterogeneousness. Adopting traditional routing methods in the integrated satellite-terrestrial network will cause problems of poor scalability
Sai Lv   +9 more
doaj   +1 more source

On the nonlinear wave transmission in a nonlinear continuous hyperbolic regime with Caputo-type temporal fractional derivative

open access: yesResults in Physics, 2021
This present manuscript studies a nonlinear hyperbolic model in fractional form which generalizes the nonlinear Klein–Gordon system. The equation under investigation includes the presence of a time-fractional operator of the Caputo type.
J.E. Macías-Díaz
doaj   +1 more source

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