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Encyclopedia > Ralph Abraham

Ralph H. Abraham (born July 4, 1936) is an American mathematician. He has been a member of the mathematics department at the University of California, Santa Cruz since 1968.


He was born in Burlington, Vermont, earned his Ph.D. from the University of Michigan in 1960, and held positions at Berkeley, Columbia, and Princeton. He has also held visiting positions in Amsterdam, Paris, Warwick, Barcelona, Basel, and Florence. He was involved in the development of the theory of dynamical systems in the 1960s and 70s. He is editor of World Futures and for the International Journal of Bifurcations and Chaos.


Another interest of Dr. Abraham's concerns alternative ways of expressing mathematics, for example visually or aurally. He founded the Visual Math Institute at UC Santa Cruz in 1975 (at that time it was called the Visual Mathematics Project). He has staged performances in which mathematics, visual arts and music are combined into one presentation.


Partial bibliography

  • Foundations of Mechanics, 2nd edn. 1978 (with J.E. Marsden)
  • Manifolds, Tensor Analysis, and Applications, 2nd edn. 1982 (with J.E. Marsden and T. Ratiu)
  • Dynamics, the Geometry of Behavior, 2nd edn. 1992 (with C.D. Shaw), transl. in Japanese
  • Trialogues on the Edge of the West, 1992 (with Terence McKenna and Rupert Sheldrake), transl. in French, German, Portuguese, Dutch
  • Chaos, Gaia, Eros, 1992, transl. in Korean
  • The Web Empowerment Book, 1995 (with Frank Jas and Will Russell)
  • Chaos in Discrete Dynamical Systems, 1995 (with Laura Gardini and Christian Mira)
  • The Evolutionary Mind, 1997 (with Terence McKenna and Rupert Sheldrake), transl. in German
  • The Chaos Avant-garde, 2000 (with Yoshisuke Ueda), transl. in Japanese.

External links


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His purpose is to bring to light a significant but relatively neglected artist through meticulous analysis of his life and paintings, as well as the literary, sociological, psychological, and even religious phenomena which might have served as an inspiration.
In this comprehensive study, Abraham Davidson argues convincingly that Blakelock is one of the greatest American painters of the nineteenth century, whose art ranges from the "romantic visionary" school reminiscent of Albert Pinkham Ryder to, later in his tragic life, a more realistic, physically experimental style often touching on abstraction.
Abraham A. Davidson is Professor of Art History at the Tyler School of Art, Temple University.
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Abraham dies at age 175 years and is buried by Isaac and Ishmael at Machpelah.
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