Report summary

University of California, Berkeley Department of Mathematics in 2015-2017 reads as a 64-PI network with 2 internal PI collaborations. The dominant subject mix is Mathematics as the leading field (51% of slots across 52 PIs; 52 labels), Mathematical Physics as the leading subfield (20% of slots across 31 PIs; 31 labels), and Advanced Algebra and Geometry as the leading topic (4% of slots across 8 PIs; 8 labels). That is of concern for a 64-PI roster; the strongest pairings may be carrying much of the visible collaboration. The leading PI names are Lin Lin (9.8 weighted works; Matrix Theory and Algorithms, Quantum chaos and dynamical systems); Yun S. Song (9 weighted works; Genetic diversity and population structure, Genetic and phenotypic traits in livestock). The most visible ties are Daniel Tataru and Sung‐Jin Oh (2 shared works, weight 2). The leading breakdown groups are group 1 with 2 PIs, 1 internal connections, weight 2, around Nuclear and High Energy Physics, Mathematical Physics, Oceanography, led by Sung‐Jin Oh, Daniel Tataru.