Results 141 to 150 of about 302,460 (378)

Effect of Chalcogen Interaction on the Structure of Methine‐Bridged Trichalcogenophenes

Chemistry – A European Journal, Accepted Article.
Polythienylenemethylidenes (PTMs) are promising conjugated polymers for organic electronics owing to their narrow bandgaps and extended π‐conjugation. However, their stereochemistry remains unexplored. In this study, methine‐bridged trithiophene and trifuran analogs were synthesized to investigate stereochemistry and chalcogen bonding effects.
Rio Nishimura, Ken-ichi Yamashita
wiley   +1 more source

Color signless Laplacian energy of graphs

AKCE International Journal of Graphs and Combinatorics, 2017
In this paper, we introduce the new concept of color Signless Laplacian energy . It depends on the underlying graph and the colors of the vertices. Moreover, we compute color signless Laplacian spectrum and the color signless Laplacian energy of families
Pradeep G. Bhat, Sabitha D’Souza
doaj   +1 more source

L-Borderenergetic graphs and Normalized Laplacian Energy [PDF]

arXiv, 2016
In this paper we present new L-borderenergetic graphs, this is, graphs which are L-noncospectral with Kn but have the same Laplacian energy. We also present some graphs which are noncospectral to respective normalized Laplacian energy and they have the same normalized Laplacian energy.
arxiv  

On some forests determined by their Laplacian or signless Laplacian spectrum

Computers & Mathematics with Applications, 2009
AbstractWe consider the class of graphs whose each component is either a proper subgraph of some Smith graphs, or belongs to a precized subset of Smith graphs. We classify the graphs from the considered class into those which are determined, or not determined, by Laplacian, or signless Laplacian spectrum.
Zoran Stanić, Slobodan K. Simić
openaire   +2 more sources

Synthesis and Reactivity of Triphosphaallyl Cation stabilized by N‐Heterocyclic Carbenes

Chemistry – A European Journal, Accepted Article.
Reduction of the triphosphaallyl species 6[GaCl4] with GaI[Ga2Cl7] affords the imidazoliumyl‐substituted (L) bicyclo[2.1.1]‐triphosphane, 10[Ga2Cl7], featuring an unprecedented Ga2Cl5‐bridged P3 scaffold. Reactions of 10[Ga2Cl7] with nucleophiles (Cl‐ or NHC) result in rare, selective P–C bond cleavages, affording Ga2Cly‐substituted triphosphiranes ...
Julia Frötschel-Rittmeyer, Felix Hennersdorf, Jannis Fidelius, Chris Sala, Christoph Ziegler, Michael Holthausen, Kai Schwedtmann, Robert Wolf, Jan J. Weigand   +8 more
wiley   +1 more source

Fractional Laplacian matrix on the finite periodic linear chain and its periodic Riesz fractional derivative continuum limit

, 2014
The 1D discrete fractional Laplacian operator on a cyclically closed (periodic) linear chain with finitenumber $N$ of identical particles is introduced. We suggest a "fractional elastic harmonic potential", and obtain the $N$-periodic fractionalLaplacian
Collet, Bernard, Michelitsch, Thomas, Nicolleau, Franck, Nowakowski, Andrzej   +3 more
core  

Efficient and model‐agnostic parameter estimation under privacy‐preserving post‐randomization data

Canadian Journal of Statistics, EarlyView.
Abstract Balancing data privacy with public access is critical for sensitive datasets. However, even after de‐identification, the data are still vulnerable to, for example, inference attacks (by matching some keywords with external datasets). Statistical disclosure control (SDC) methods offer additional protection, and the post‐randomization method ...
Qinglong Tian, Jiwei Zhao
wiley   +1 more source

Quantum Gross Laplacian and Applications [PDF]

arXiv, 2008
In this paper, we introduce and study a noncommutative extension of the Gross Laplacian, called quantum Gross Laplacian. Then, applying the quantum Gross Laplacian to the particular case where the operator is the multiplication operator, we find a relation between classical and quantum Gross Laplacian.
arxiv  

Unifying adjacency, Laplacian, and signless Laplacian theories

Ars Mathematica Contemporanea
The final version of the article to be appear in Ars Mathematica ...
Samanta, Aniruddha, Deepshikha, Das, Kinkar Chandra   +2 more
openaire   +2 more sources

The Laplacian spread of Cactuses [PDF]

Discrete Mathematics & Theoretical Computer Science, 2010
Combinatorics Connected graphs in which any two of its cycles have at most one common vertex are called cactuses. In this paper, we continue the work on Laplacian spread of graphs, and determine the graph with maximal Laplacian spread in all cactuses with n vertices.
openaire   +4 more sources