Journal
SCIENTOMETRICS
Volume 99, Issue 3, Pages 973-998Publisher
SPRINGER
DOI: 10.1007/s11192-013-1209-z
Keywords
Mathematics research; Collaboration networks; Evolving networks
Funding
- NSF [477855]
- [HHMI:52006309]
- Division Of Mathematical Sciences
- Direct For Mathematical & Physical Scien [1062878] Funding Source: National Science Foundation
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This study examines long-term trends and shifting behavior in the collaboration network of mathematics literature, using a subset of data from Mathematical Reviews spanning 1985-2009. Rather than modeling the network cumulatively, this study traces the evolution of the here and now using fixed-duration sliding windows. The analysis uses a suite of common network diagnostics, including the distributions of degrees, distances, and clustering, to track network structure. Several random models that call these diagnostics as parameters help tease them apart as factors from the values of others. Some behaviors are consistent over the entire interval, but most diagnostics indicate that the network's structural evolution is dominated by occasional dramatic shifts in otherwise steady trends. These behaviors are not distributed evenly across the network; stark differences in evolution can be observed between two major subnetworks, loosely thought of as pure and applied, which approximately partition the aggregate. The paper characterizes two major events along the mathematics network trajectory and discusses possible explanatory factors.
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