Born: April 18, 1907, Helsinki, Finland.

Died: October 11, 1996, Pittsfield, United States of America.

Higher Education: PhD Mathematics at University of Helsinki (Helsinki, Finland).

Main Publications: 

• Ahlfors, Lars V. An extension of Schwarz’s lemma. Trans. Amer. Math. Soc. 43 (1938), no. 3, pp. 359–364
• Ahlfors, Lars; Beurling, Arne. Conformal invariants and function-theoretic null-sets. Acta Math. 83 (1950), pp. 101–129
• Beurling, A.; Ahlfors, L. The boundary correspondence under quasiconformal mappings. Acta Math. 96 (1956), pp. 125–142
• Ahlfors, Lars; Bers, Lipman. Riemann’s mapping theorem for variable metrics. Ann. of Math. (2) 72 (1960), pp. 385–404
• Ahlfors, Lars Valerian. Collected papers. Vol. 1. 1929–1955. Edited with the assistance of Rae Michael Shortt. Contemporary Mathematicians. Birkhäuser, Boston, Mass., 1982. xix+520 pp
• Ahlfors, Lars Valerian. Collected papers. Vol. 2. 1954–1979. Edited with the assistance of Rae Michael Shortt. Contemporary Mathematicians. Birkhäuser, Boston, Mass., 1982. xix+515 pp
• Ahlfors, Lars V. Complex analysis. An introduction to the theory of analytic functions of one complex variable. Third edition. International Series in Pure and Applied Mathematics. McGraw-Hill Book Co., New York, 1978. xi+331 pp
• Ahlfors, Lars V. Conformal invariants. Topics in geometric function theory. Reprint of the 1973 original. With a foreword by Peter Duren, F. W. Gehring and Brad Osgood. AMS Chelsea Publishing, Providence, RI, 2010. xii+162 pp
• Ahlfors, Lars V. Lectures on quasiconformal mappings. Second edition. With supplemental chapters by C. J. Earle, I. Kra, M. Shishikura and J. H. Hubbard. University Lecture Series, 38. American Mathematical Society, Providence, RI, 2006. viii+162 pp
• Ahlfors, Lars V. Möbius transformations in several dimensions. Ordway Professorship Lectures in Mathematics. University of Minnesota, School of Mathematics, Minneapolis, Minn., 1981. ii+150 pp
• Ahlfors, Lars V.; Sario, Leo. Riemann surfaces. Princeton Mathematical Series, No. 26 Princeton University Press, Princeton, N.J. 1960 xi+382 pp.

Knows for:

• Riemann surfaces
• Quasiconformal mappings
• Denjoy-Carleman-Ahlfors theorem
• Ahlfors finiteness theorem for Kleinian groups
• Ahlfors theory
• Conformal geometry
• Geometric function theory.