Ky Fan (1914–2010), he spent every waking moment thinking about mathematics

Abstract

This survey article on Dr. Ky Fan summarizes his versatile achievements and fundamental contributions in the fields of topological groups, nonlinear and convex analysis, operator theory, linear algebra and matrix theory, mathematical programming, and approximation theory, etc., and as well reveals Fan’s exemplary mathematical formation opening up the beauty of pure mathematics, with natural conditions, concise statements and elegant proofs. This article contains a brief biography of Dr. Fan and epitomizes his life. He was not only a great mathematician, but also a very serious teacher known to be extremely strict to his students. He loved his motherland and made generous donations for promoting mathematical development in China. He devoted his life to mathematics, continued his research and published papers till 85 years old.

Keywords

Ky Fan / topological group / nonlinear and convex analysis / fixed point theory / operator theory / linear algebra and matrix theory / nonlinear programming / complex analysis / combinatory / approximation theory

References

[1] Aubin J. P. Mathematical Methods of Games and Economic Theory, 1979, Amsterdam: North-Holland.

[2] Aubin J. P., Ekeland I. Applied Nonlinear Analysis, 1984, New York: JohnWiley & Sons.

[3] Dieudonne J. A Panorama of Pure Mathematics, 1982, New York: Academic Press.

[4] Dugundji J., Granas A. Fixed Point Theory, I, 1982, Warszawa: PWM-Polish Scientific Publishers.

[5] Fan K. On a theorem of Weyl concerning eigenvalues of linear transformations, I. Proc Nat Acad Sci USA, 1949, 35, 652-655

[6] Fan K. On a theorem of Weyl concerning eigenvalues of linear transformations, II. Proc Nat Acad Sci USA, 1950, 36, 31-35

[7] Fan K. Maximum properties and inequalities for the eigenvalues of completely continuous operators. Proc Nat Acad Sci USA, 1951, 37, 760-766

[8] Fan K. Fixed-point and minimax theorems in locally convex topological linear spaces. Proc Nat Acad Sci USA, 1952, 38, 121-126

[9] Fan K. Minimax theorems. Proc Nat Acad Sci USA, 1953, 39, 42-47

[10] Fan K. Kuhn H. W., Tuker A. W. On systems of linear inequalities. Linear Inequalities and Related Systems, 1956, Princeton: Princeton Univ Press 99-156

[11] Fan K. Topological proofs for certain theorems on matrices with non-negative elements. Monatsh Math, 1958, 62, 219-237

[12] Fan K. Linear inequalities and closure properties in normed linear spaces. Seminar on Analytic Functions, Vol. 2, 1958, Princeton: Inst for Advanced Study 202-212

[13] Fan K. Invariant subspaces of certain linear operators. Bull Amer Math Soc, 1963, 69, 773-777

[14] Fan K. Invariant subspaces for a semigroup of linear operators. Proc Koninkl Nederl Akademle Van Wetenschappen-Amsterdam Ser A, 1965, 68 3 447-451

[15] Fan K. Applications of a theorem concerning sets with convex sections. Math Ann, 1966, 163, 189-203

[16] Fan K. Simplicial maps from an orientable n-pseudomanifold onto Sm with the octahedral triangulation. J Combin Theory, 1967, 2, 588-602

[17] Fan K. Extensions of two fixed point theorems of F. E. Browder. Math Z, 1969, 112, 234-240

[18] Fan K. On local connectedness of locally compact Abelian groups. Math Ann, 1970, 187, 114-116

[19] Fan K. Shisha O. A minimax inequality and applications. Inequalities III. Proceedings of the Third Symposium on Inequalities, 1972, New York: Academic Press Inc 103-113

[20] Fan K. Anderson R. D. Covering properties of convex sets and fixed point theorems in topological vector spaces. Symposium on Infinite Dimensional Topology, 1972, Princeton: Princeton Univ Press 79-92

[21] Fan K. Fixed-point theorems in functional analysis (supplementary manual for recording of a lecture), 1972, Providence: Amer Math Soc.

[22] Fan K. Two applications of a consistency theorem for systems of linear inequalities. Linear Algebra Appl, 1975, 11, 171-180

[23] Fan K. Extension of invariant linear functional. Proc AMS, 1977, 66 1 23-29

[24] Fan K. Analytic functions of a proper contraction. Math Z, 1978, 160, 275-290

[25] Fan K. Julia’s lemma for operators. Math Ann, 1979, 239, 241-245

[26] Fan K. Pick-Julia theorems for operators. Math Z, 1979, 168, 23-34

[27] Fan K. Schwarz’s lemma for operators on a Hilbert space. Analeptic stintifice ale Universitatii “Al I. Cuza” Iasi Supliment la tomul XXV, s. I a, 1979

[28] Fan K. Mosechlin O., Pallaschke D. A further generalization of Shapley’s generalization of the KKM theorem. Game Theory and Mathematical Economics, 1981, Amsterdam: North Holland Publishing Company 275-279

[29] Fan K. Iteration of analytic functions of operators. Math Z, 1982, 179, 293-298

[30] Fan K. Evenly distributed subsets of S ⁿ and a combinatorial application. Pacific J of Math, 1982, 98 2 323-325

[31] Fan K. Some aspects of the development of linear algebra in the last sixty years. Linear Algebra Appl, 1992, 162-164, 15-22

[32] Fan K. Operator-valued typically real functions. Proc Amer Math Soc, 1996, 124, 765-771

[33] Fan K. Antipodal and fixed point theorems for sets in ℝⁿ bounded by a finite number of spheres. Advances in Appl Math, 1999, 22, 219-226

[34] Fan K., Fréchet M. Introduction à la topologie combinatoire. I. Initiation, 1945, Paris: Vubert.

[35] Fan K., Glicksberg I., Hoffman A. J. Systems of inequalities involving convex functions. Proc Amer Math Soc, 1957, 8, 617-622

[36] Lim B -L. In Memoriam Professor Ky Fan (1914–2010). Preprint

[37] Rockafellar R. T. Convex Analysis, 1970, Princeton: Princeton Univ. Press.

[38] Stopple J. Dr. Fan, World Renowned Mathematician, Professor Emeritus of UC Santa Barbara. Preprint

[39] Zeidler E. Nonlinear Functional Analysis and Its Applications, I–IV, 1993, Berlin: Springer-Verlag.