Results 31 to 40 of about 33,034 (214)
Combinatorial Necklace Splitting [PDF]
The Electronic Journal of Combinatorics, 2009 We give a new, combinatorial proof for the necklace splitting problem for two thieves using only Tucker's lemma (a combinatorial version of the Borsuk-Ulam theorem). We show how this method can be applied to obtain a related recent result of Simonyi and even generalize it.
openaire +2 more sources
Ultra high energy cosmic rays from cosmological relics [PDF]
Ultra High Energy Cosmic Rays (UHECR) can be a signal from very early (post-inflationary) Universe. At this cosmological epoch Topological Defects (TD) and long-lived suprheavy (SH) particles are expected to be naturally and effectively produced. Both of
Berezinsky, V.
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Cosmic Necklaces and Ultrahigh Energy Cosmic Rays [PDF]
Cosmic necklaces are hybrid topological defects consisting of monopoles and strings, with two strings attached to each monopole. We argue that the cosmological evolution of necklaces may significantly differ from that of cosmic strings.
A. Vilenkin +32 more
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Massive superfluid vortices and vortex necklaces on a planar annulus
SciPost Physics, 2023 We study a superfluid in a planar annulus hosting vortices with massive cores. An analytical point-vortex model shows that the massive vortices may perform radial oscillations on top of the usual uniform precession of their massless counterpart. Beyond a
Matteo Caldara, Andrea Richaud, Massimo Capone, Pietro Massignan
doaj +1 more source
Advanced Science, 2020 Iron/manganese‐based layered transition metal oxides have risen to prominence as prospective cathodes for sodium‐ion batteries (SIBs) owing to their abundant resources and high theoretical specific capacities, yet they still suffer from rapid capacity ...
Qiuyu Shen +7 more
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Anthropomorphic amulets from Viminacium [PDF]
Starinar, 2020 The paper focuses on a group of five anthropomorphic pendants, deposited in graves of sub-adult and female individuals, discovered in cemeteries of ancient Viminacium (Serbia).
Milovanović Bebina D. +1 more
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Cosmic Necklaces from String Theory [PDF]
We present the properties of a cosmic superstring network in the scenario of flux compactification. An infinite family of strings, the (p,q)-strings, are allowed to exist.
Leblond, Louis, Wyman, Mark
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Multichannel Kondo necklace [PDF]
Physical Review B, 1993 29 pages (2 figures upon request from fazekas@itsictp.bitnet), LATEX, submitted for ...
Fazekas, P., Kee, Hae-Young
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Advanced Science, EarlyView.Programmable hydration pathways enable reconfigurable ionic thermoelectrics in polyquaternium hydrogels. By coupling microscopic solvation, mesoscale water channels, and macroscopic boundary control, hydration‐gated protonics decouples thermopower, response speed, and stability.
Zehao Zhao, Yun Shen, Dongyan Xu
wiley +1 more source
Frontiers in Marine Science, 2022 In Brazil, dolphins’ body parts are commonly used as traditional amulets, named as love-charms, while dolphins’ teeth are commercialized in handcrafted necklaces and bracelets.
Greicy F. Ruenes +13 more
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