Results 51 to 60 of about 39,865 (232)
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
Complete spectrum of the infinite-$U$ Hubbard ring using group theory [PDF]
, 2014 We present a full analytical solution of the multiconfigurational strongly-correlated mixed-valence problem corresponding to the $N$-Hubbard ring filled with $N-1$ electrons, and infinite on-site repulsion.
Alessandro Soncini +5 more
core +1 more source
Cyclic Sieving, Necklaces, and Branching Rules Related to Thrall's Problem [PDF]
Electronic Journal of Combinatorics, 2018 We show that the cyclic sieving phenomenon of Reiner-Stanton-White together with necklace generating functions arising from work of Klyachko offer a remarkably unified, direct, and largely bijective approach to a series of results due to Kraśkiewicz ...
Connor Ahlbach, Joshua P. Swanson
semanticscholar +1 more source
Advanced Science, EarlyView.A high‐entropy oxide ceramic of (Gd1/2Lu1/2)2(Ti1/3Zr1/3Hf1/3)2O7 is prepared through a molecular synthesis route of pyrolytic solid‐solution reactions. The architectured nanofiber aerogel manifests unprecedented thermomechanical properties, including superelastic compressibility of 98% from −196 to 1500 °C, and thermal superinsulation capacity (24.14 ...
Xiaoke Jiang +9 more
wiley +1 more source
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
doaj +1 more source
Formation of optimal-order necklace modes in one-dimensional random photonic superlattices [PDF]
, 2007 We study the appearance of resonantly coupled optical modes, optical necklaces, in Anderson localized one-dimensional random superlattices through numerical calculations of the accumulated phase.
A. Thelen +4 more
core +1 more source
Hollow‐Structured Li Hosts Featuring Lithiophilic Metal/Metal Compound Sites for Li‐Metal Anodes
Advanced Science, EarlyView.This review summarizes some major developments of hollow‐structured nanomaterials as advanced Li hosts for Li‐metal anodes (LMAs). In particular, it focuses on hollow Li hosts with metals or metal compounds as the lithiophilic sites. Some future prospects for the advancement of hollow Li hosts are provided.
Chen Yu +3 more
wiley +1 more source
Археология евразийских степейDuring the Bronze Age (2250–1300 BCE), the territory of the Surxondaryo region was inhabited by bearers of a material culture known as the Sapalli culture.
Odiljon A. Khamidov +2 more
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
doaj +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
doaj +1 more source