Abstracts of recent doctoral dissertations in computer algebra

2021 ◽  
Vol 55 (3) ◽  
pp. 117-124
Author(s):  
CCA editors
Keyword(s):  
Symbolic Computation ◽  
Computer Algebra ◽  
The Past ◽  
Doctoral Dissertations

Each quarter we are pleased to present abstracts of recent doctoral dissertations in Computer Algebra and Symbolic Computation. We encourage all recent Ph.D. graduates who have defended in the past two years (and their supervisors), to submit their abstracts for publication in CCA.

The TOPAS symbolic computation system

2011 ◽  
Vol 26 (S1) ◽  
pp. S22-S25 ◽  
Author(s):  
A. A. Coelho ◽  
J. Evans ◽  
I. Evans ◽  
A. Kern ◽  
S. Parsons
Keyword(s):  
Developmental Stage ◽  
Rietveld Refinement ◽  
Symbolic Computation ◽  
Computer Algebra ◽  
Symbolic System ◽  
Symbolic Form ◽  
Functional Changes ◽  
Low Level ◽  
Run Time

Computer algebra removes much of the drudgery from mathematics; it allows users to formulate models by using the language of mathematics and to have those models evaluated with little effort. This symbolic form of representation is often thought of as being separate to dedicated computational programs such as Rietveld refinement. These dedicated programs are often written in low level languages; they are relatively inflexible in what they do and modifying them to change functionality in a small manner is often a major programming task. This paper describes a symbolic system that is integrated into the dedicated Rietveld refinement program called TOPAS. The symbolic component allows large functional changes to be made at run time and with a relatively small amount of effort. In addition, the system as a whole reduces the programming complexity at the developmental stage.

scholarly journals On the evolution of library and information science doctoral dissertation topics in China

2020 ◽  
pp. 096100062094857 ◽  
Author(s):  
Yanhui Song ◽  
Li Zhu ◽  
Fei Shu
Keyword(s):  
Information Science ◽  
Science Research ◽  
Radical Change ◽  
Library Science ◽  
Library And Information Science ◽  
Research Topics ◽  
Doctoral Research ◽  
The Past ◽  
Doctoral Dissertations ◽  
Doctoral Advisors

Previous studies have presented a radical change in library and information science research topics in North America. This article investigates library and information science doctoral dissertations in China in terms of their topics and interdisciplinarity in the past 20 years. The results do not find a significant change in library and information science dissertation topics in China but reveal that the increase of library and information science doctoral research in the area of information science is attributed to an increase in admissions to Information Science majors compared to other majors (Library Science and Archive Studies). This study also shows that the academic background of library and information science doctoral advisors does not affect the interdisciplinarity of their students’ doctoral dissertations in China.

Abstracts of recent doctoral dissertations in computer algebra

2019 ◽  
Vol 52 (4) ◽  
pp. 154-155
Author(s):  
Jiaxiong (Lucas) Hu ◽  
Anton Panferov
Keyword(s):  
Computer Algebra ◽  
Doctoral Dissertations
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