Results 21 to 30 of about 663 (192)

Crystal structure of 2-carboxypyridinium tetraiodo(pyridine-2-carboxylato-k2N,O)platinate(IV),(C6H6NO2)[PtI4(C6H4NO2)]

Zeitschrift für Kristallographie - New Crystal Structures, 2010
Ha Kwang
doaj   +2 more sources

Crystal structure of diacetato(2,2′-bipyridine-k2N,N′)palladium(II)pentahydrate, Pd(CH3CO2)2(C10H8N2) · 5H2O

Zeitschrift für Kristallographie - New Crystal Structures, 2010
Ha Kwang
doaj   +2 more sources

Refinement of the crystal structure of bis(N-n-butylsalicylaldiminato- k2N,O)nickel(II), Ni(C11H14NO)2

Zeitschrift für Kristallographie - New Crystal Structures, 2011
Mei Yunjun, Wang Wenqing, Zhang Shunxi
doaj   +2 more sources

Congruences for Apéry numbers βn =∑k=0nn k2n+k k [PDF]

International Journal of Number Theory, 2019
In this paper, we establish some congruences involving the Apéry numbers [Formula: see text]. For example, we show that [Formula: see text] for any positive integer [Formula: see text], and [Formula: see text] for any prime [Formula: see text], where [Formula: see text] is the [Formula: see text]th Bernoulli number.
Hui-Qin Cao, Yuri Matiyasevich, Zhi-Wei Sun   +2 more
openaire   +1 more source

Decompositions into isomorphic rainbow spanning trees [PDF]

, 2020
A subgraph of an edge-coloured graph is called rainbow if all its edges have distinct colours. Our main result implies that, given any optimal colouring of a sufficiently large complete graph K2n, there exists a decomposition of K2n into isomorphic ...
Osthus, Deryk, Glock, Stefan, Montgomery, Richard, Kuhn, Daniela   +3 more
core   +1 more source

Gracefulness of Two Kinds of Unconnected Graphs with Even Vertices

, 2022
Two kinds of unconnected double fan graphs with even vertices, (P1(1)∨(P2n(1)⋃P2n(2)))⋃P2n+1⋃(P1(2)∨K2n¯) and (P1(1)∨(P2n(1)⋃ P2n(2)))⋃(P1(2)∨K2n(1)¯)⋃(P1(3)∨K2n(2)¯) were presented.
Xiaoyan WEN, Tao WANG, Lili SUI
core   +1 more source

The crystal structure of cis-Dicyano-bis(2,2′-bipyridine)k2N,N′-chromium(III) hexafluorophosphate, C22H16N6F6PCr

Zeitschrift für Kristallographie - New Crystal Structures, 2023
C22H16N6F6PCr, orthorhombic, P212121 (no. 19), a = 11.3511(7) Å, b = 12.1350(8) Å, c = 17.3820(11) Å, V = 2394.3(3) Å3, Z = 4, Rgt(F) = 0.0388, wRref(F2) = 0.1023, T = 293 K.
Zhuo Linhai, Zhang Jinjun
doaj   +1 more source

STUDIES ON TEACHING BIODIVERSITY BY THE USE OF ONLINE INTERACTIVE IDENTIFICATION TOOLS

Agricultura, 2011
Modern teaching methods and learning with educational soft allow education to adapt to current and future needs of modern society. Computer-assisted learning for specific biodiversity study with on line K2N tools facilitate the work of learning capacity ...
Felicia Boar, Kerekes Adelhaida, M. Giurgiu, E. Luca   +3 more
doaj   +1 more source

Crystal structure of bis(2,2'-bipyrimidine-) k2N,N')dichloromanganese( II)—nitromethane (1:1), MnCl2(C8H6N4)2 · CH3NO2

Zeitschrift für Kristallographie - New Crystal Structures, 2011
Ha Kwang
doaj   +2 more sources

Recoloring subgraphs of K2 for sports scheduling

Theoretical Computer Science, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Sebastián Urrutia, Dominique de Werra, Tiago Januario   +2 more
openaire   +5 more sources