186 research outputs found
THE STRUCTURE OF UNIT GRUOP OF
Let be the gruop ring of the group over ring and be its unitgroup. In this paper, we obtain the structure of unit group of
The hyper-Wiener index of the generalized hierarchical product of graphs
AbstractThe hyper Wiener index of the connected graph G is WW(G)=12∑{u,v}⊆V(G)(d(u,v)+d(u,v)2), where d(u,v) is the distance between the vertices u and v of G. In this paper we compute the hyper-Wiener index of the generalized hierarchical product of two graphs and give some applications of this operation
A CHARACTERIZATION OF PSL(4,p) BY SOME CHARACTER DEGREE
Let G be a finite group and cd(G) be the set of irreducible character degree of G. In this paper we prove that if p is a prime number, then the simple group PSL(4,p) is uniquely determined by its order and some its character degrees.
On the Narumi-Katayama Index of Composite Graphs
The Narumi-Katayama index of a graph G, denoted by N K(G), is equal to the product of degrees
of vertices of G. In this paper we investigate its behavior under several binary operations on graphs. We
present explicit formulas for its values for composite graphs in terms of its values for operands and some
auxiliary invariants. We demonstrate applications of our results to several chemically relevant classes of
graphs and show how the Narumi-Katayama index can be used as a measure of graph irregularity. (doi:
10.5562/cca2329
Computing the Szeged Index of Two Type Dendrimer Nanostars
In this paper we compute the szeged index of the first and second type of dendrimer nanostar
Deep Sketch-Photo Face Recognition Assisted by Facial Attributes
In this paper, we present a deep coupled framework to address the problem of
matching sketch image against a gallery of mugshots. Face sketches have the
essential in- formation about the spatial topology and geometric details of
faces while missing some important facial attributes such as ethnicity, hair,
eye, and skin color. We propose a cou- pled deep neural network architecture
which utilizes facial attributes in order to improve the sketch-photo
recognition performance. The proposed Attribute-Assisted Deep Con- volutional
Neural Network (AADCNN) method exploits the facial attributes and leverages the
loss functions from the facial attributes identification and face verification
tasks in order to learn rich discriminative features in a common em- bedding
subspace. The facial attribute identification task increases the inter-personal
variations by pushing apart the embedded features extracted from individuals
with differ- ent facial attributes, while the verification task reduces the
intra-personal variations by pulling together all the fea- tures that are
related to one person. The learned discrim- inative features can be well
generalized to new identities not seen in the training data. The proposed
architecture is able to make full use of the sketch and complementary fa- cial
attribute information to train a deep model compared to the conventional
sketch-photo recognition methods. Exten- sive experiments are performed on
composite (E-PRIP) and semi-forensic (IIIT-D semi-forensic) datasets. The
results show the superiority of our method compared to the state- of-the-art
models in sketch-photo recognition algorithm
A CHARACTERIZATION OF U4(2) BY NSE
Let be a finite group and be the set of element orders of . Let and be the number of elements of order in . Let . The aim of this paper is to prove that, if is a finite group such that nse()=nse(), then
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