1,720,963 research outputs found
Generalized Volterra Type Integral Operators Acting Between Generalized Fock Spaces
Full text linkThe theory and study of integral operators is a wide history. Specially, boundedness and
compactness properties of different integral operators have been widely studied on several
spaces. Due to this, there is a big interest to study this properties for the generalized
Volterra-type integral operator also and have been studied by many researchers acting
between different spaces. In this thesis, we studied the and compactness properties of
generalized Volterra-type integral operator acting on generalized Fock spaces F
φ
p
, where
0 < p ≤ ∞ and φ is a faster growing weight when compared with the Gaussian weight
function |z|
2
2
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Schatten Class Generallized Integration Operators on Fock Spaces
Full text linkDifferent properties of Volterra-type integral operator have been studied in the past two decades
on several functional spaces. In particular, on Fock spaces Volterra type integral operator
studied by (Constantin, 2012 and Mengestie, 2013). The schatten class membership of Volterra
type integral operators on Fock spaces were studied also by (Constantin, 2012 and Mengestie,
2013). However, the schatten class membership of generalized integration operator on Fock
spaces is not studied. So the purpose of this thesis is to fill this gap and study schatten
class membership of generalized integration operator on Fock spaces. The result of this thesis
generalize the works of (Constantin, 2012 and Mengesti
Constructing an Iterative algorithm for Variational Inequality Problem of a Finite Family of Pseudomonotone Mappings in Banach Spaces
No full textIn this thesis we constructed an iterative scheme for approximat
ing a common solution of a variational inequality problem of a nite
family of pseudo monotone mappings in Banach spaces and proved a
strong convergence of a sequence generated by proposed algorithm to
a common solution of for a variational inequality problem of a nite
family of pseudo monotone mappings in Banach spaces. Finally, pre
sented an applications of our main results to approximating a com
mon point of a nite family of convex functions in Banach spaces.
Our results improved and generalized most of the results that have
been proved for this important class of nonlinear mappings. In par
ticular, Theorem 5.1.4 extend the results of H. Iiduka et al, (2004), N.
Nadezhkina and W. Takahashi, (2006), A. Tad and W. Takahashi,
(2007), W. Takahashi and M. Toyoda, (2003) and Y. Zhanga and
Q. Yuanb, (2016) from real Hilbert spaces to real re exive Banach
spaces. Moreover, Theorem 5.1.5 extends Theorem 3.1 of Tufa and
Zegeye, (2015) and Wega and Zegeye, (2021) from Lipschitz mono
tone mappings variational inequality to continuous pseudomonotone
mappings variational inequality in real re exive Banach spaces
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
An Iterative Algorithm for a Common Solution of Split Equality of Variational Inequality Problem of Pseudomonotone Mappings in Banach Spaces
No full textIn this thesis we introduced an iterative algorithm for a common solution of split
equality of variational inequality problem of pseudomonotone mappings in Ba
nach spaces and proved a strong convergence of a sequence generated by proposed
algorithm to asolution of split equality of variational inequality problem of pseu
domonotone mappings in Banach spaces. Finally, we gave applications of our main
results to approximate a common solution of split equality minimum point prob
lem for convex functions in real re exive Banach spaces. Our results extended and
generalized many results in the literature
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