Results 101 to 110 of about 379,230 (325)
Tubes in hyperbolic 3-manifolds [PDF]
Topology and its Applications, 2003 The author proves a lower bound on the volume of a maximal precisely invariant tube of radius \(r\) which meets itself at an angle \(\theta\) in a hyperbolic 3-orbifold. This result implies that any closed orientable hyperbolic 3-manifold has volume at least \(0.276666\) (recall that the smallest known volume manifold, obtained by Weeks, by Fomanko and
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A Census of Tetrahedral Hyperbolic Manifolds [PDF]
Experimental Mathematics, 2016 26 pages, 5 Figures, 2 Tables; version 2 addresses referee's comments, in particular a rewrite of section ...
Matthias Goerner +4 more
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Design and Applications of Multi‐Frequency Programmable Metamaterials for Adaptive Stealth
Advanced Functional Materials, EarlyView.This article provides a comprehensive overview of metamaterials, including their fundamental principles, properties, synthesis techniques, and applications in stealth, as well as their challenges and future prospects. It covers topics that are more advanced than those typically discussed in existing review articles, while still being closely connected ...
Jonathan Tersur Orasugh +4 more
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Volumes of hyperbolic three-manifolds
Topology, 1985 The authors introduce for a hyperbolic 3-manifold M with h cusps and for the manifold \(M_ K=M_{(p_ 1,q_ 1,...,p_ h,q_ h)}\) obtained by doing a \((p_ i,q_ i)\)-Dehn surgery on the i-th cusp some positive definite binary quadratic forms \(Q_ 1,...,Q_ n:\) \(Q_ i(p,q)=(length\) of \(pm_ i+q\ell_ i)^ 2/(vol T_ i)\). Here \(T_ i\) is a torus cross section
Don Zagier, Walter D. Neumann
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Advanced Healthcare Materials, EarlyView.PGXTEC) liquid technology is utilized to develop highly respirable yeast beta‐glucan (YBG) microparticles for the treatment of pulmonary fibrosis. Compared to conventionally processed spray‐dried YBG, PGXTEC‐YBG exhibits greatly improved aerodynamic properties, enhanced pro‐fibrotic macrophage uptake, and effective downregulation of pro‐fibrotic ...
Nate Dowdall +14 more
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Hyperbolic Volumes of Two Bridge Cone-Manifolds
Известия Иркутского государственного университета: Серия "Математика"In this paper we investigate the existence of hyperbolic, Euclidean and spherical structures on cone-manifolds with underlying space 3-sphere and with singular set a given two-bridge knot.
A. D. Mednykh, A. B. Qutbaev
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Two-field cosmological α-attractors with Noether symmetry
Journal of High Energy Physics, 2019 We study Noether symmetries in two-field cosmological α-attractors, investigating the case when the scalar manifold is an elementary hyperbolic surface. This encompasses and generalizes the case of the Poincaré disk.
Lilia Anguelova +2 more
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A new look at the C 0-formulation of the strong cosmic censorship conjecture
New Journal of Physics, 2022 We examine the C ^0 -formulation of the strong cosmic censorship conjecture (SCC) from a quantum complexity-theoretic perspective and argue that for generic black hole parameters as initial conditions for the Einstein equations, corresponding to the ...
Aditya Iyer +2 more
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Norbornene Homopolymerization Limits Cell Spreading in Thiol–Ene Photoclick Hydrogels
Advanced Healthcare Materials, EarlyView.Thiol–norbornene click reactions are often used in the development of cell‐permissive 3D hydrogels. However, ene–ene crosslinks in other thiol–ene systems are known to limit permissivity. This study demonstrates the negative effects of norbornene homopolymerization on 3D cell spreading and circumvents the issue by modulating polymer degree of ...
James L. Gentry, Steven R. Caliari
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Advanced Materials, EarlyView.A benzene‐phosphonic acid self‐assembled monolayer (BPA) simultaneously optimizes hole extraction and noise suppression, enabling bifunctional organic photovoltaics–photodetectors that deliver superb indoor performance and commercial viability. BPA‐devices achieve 28.6% PCE at 1000 lx, retain 93% efficiency on large‐scaled devices, and reach 584 fW NEP
Seunghyun Oh +8 more
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