Review of A Short Course in Computational Geometry and Topology by Herbert Edelsbrunner

2021 ◽  
Vol 52 (4) ◽  
pp. 11-14
Author(s):  
Abdulai Gassama ◽  
Frederic Green

Computational geometry and topology are huge branches of mathematics. Focussing on concepts that lead to computation is one strategy to provide a concrete conceptual basis for ideas that hold in a more general context. Indeed, this short book gives an introduction to a surprisingly broad range of ideas that can serve as a good introduction to geometry and topology (even broadly conceived) for undergraduates.

2004 ◽  
Vol 50 (6) ◽  
pp. 383-396 ◽  
Author(s):  
Corinne Teyssier ◽  
Hélène Marchandin ◽  
Estelle Jumas-Bilak

The alpha-proteobacteria displayed diverse and often unconventional life-styles. In particular, they keep close relationships with the eucaryotic cell. Their genomic organization is often atypical. Indeed, complex genomes, with two or more chromosomes that could be linear and sometimes associated with plasmids larger than one megabase, have been described. Moreover, polymorphism in genome size and topology as well as in replicon number was observed among very related bacteria, even in a same species. Alpha-proteobacteria provide a good model to study the reductive evolution, the role and origin of multiple chromosomes, and the genomic fluidity. The amount of new data harvested in the last decade should lead us to better understand emergence of bacterial life-styles and to build the conceptual basis to improve the definition of the bacterial species.Key words: alpha-proteobacteria, genome, dynamics, diversity.


2010 ◽  
Vol 41 (3) ◽  
pp. 14
Author(s):  
HEIDI SPLETE
Keyword(s):  

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