Results 91 to 100 of about 2,186 (142)

Spectral neighbor joining for reconstruction of latent tree Models. [PDF]

open access: yesSIAM J Math Data Sci, 2021
Jaffe A   +5 more
europepmc   +1 more source

On the Harary Estrada index of graphs

open access: yesSpecial Matrices
Let GG be a connected graph with nn vertices v1,…,vn{v}_{1},\ldots ,{v}_{n}. The Harary matrix of GG, denoted by H(G)H\left(G), is an n×nn\times n matrix with a zero main diagonal, where the (i,j)\left(i,j)-entry is 1d(vi,vj)\frac{1}{d\left({v}_{i},{v}_ ...
Oboudi Mohammad Reza
doaj   +1 more source

Perron-Frobenius and Krein-Rutman theorems for tangentially positive operators

open access: yesOpen Mathematics, 2012
Kanigowski Adam, Kryszewski Wojciech
doaj   +1 more source

Degree-based topological properties of borophene sheets

open access: yesMain Group Metal Chemistry
This study examines many innovative topological numbers and establishes mathematical interpretations for boron clusters and borophene coverings. The general Randic index, arithmetic index, and Albertson index are discussed in this work for the alpha ...
Al Khabyah Ali   +3 more
doaj   +1 more source

Spectral top-down recovery of latent tree models. [PDF]

open access: yesInf inference, 2023
Aizenbud Y   +7 more
europepmc   +1 more source

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