1,721,037 research outputs found
Regularized inner products and meromorphic modular forms
No full textIn this talk, we consider a regularization of Petersson's inner product which is well-defined (and finite) between two meromorphic modular forms and agrees with Petersson's inner product whenever the latter exists. We take the inner product between a special family of meromorphic modular forms and show a connection with the automorphic Green's function and certain functions which are called polar harmonic Maass forms. We then discuss some applications of these polar harmonic Maass forms, including formulas and asymptotics for Fourier coefficients of meromorphic modular forms, construction of a basis of meromorphic modular forms of non-positive weight, and an algorithm to compute the divisor of a given meromorphic modular form given only its Fourier expansion. Most of the talk is joint work with Kathrin Bringmann and Anna von Pippich, while the first two applications are joint work with Kathrin Bringmann and the application to divisors of modular forms is joint work with Kathrin Bringmann, Steffen Loebrich, Ken Ono, and Larry Rolen
Inequalities for differences of Dyson's rank for all odd moduli
Full text linkKathrin Bringmann (Mathematisches Institut, Universität Köln, Weyertal 86-90, D-50931 Köln, Germany)
Ben Kane (Wiskunde Afdeling, Radboud Universiteit, Postbus 9010, 6500 GL, Nijmegen, Netherlands)postprin
Regularized inner products and meromorphic modular forms
No full textIn this talk, we discuss regularized inner products between meromorphic modular forms. In addition to their established applications via theta lifts, we will introduce a realization of higher Green’s functions evaluated at CM points as an inner product and give a new interpretation to weakly holomorphic Hecke eigenforms. This is based on joint work with Kathrin Bringmann and Anna von Pippich
Regularized inner products and meromorphic modular forms
No full textIn this talk, we discuss regularized inner products between meromorphic modular forms. In addition to their established applications via theta lifts, we will introduce a realization of higher Green’s functions evaluated at CM-points as an inner product and give a new interpretation to weakly holomorphic Hecke eigenforms. This is based on joint work with Kathrin Bringmann and Anna von Pippich
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
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
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