なんか、こんなのが conformal mapping 検索で引っかかった
貼っておく
被引用数: 1378は 有名論文だろうね

http://www.numdam.org/article/CM_1951__8__205_0.pdf
被引用数: 1378
S. BERGMAN
M. SCHIFFER
Kernel functions and conformal mapping
Compositio Mathematica, tome 8 (1951), p. 205-249

To our teacher, Erhard Schmidt, on the occasion of his 75th birthday