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Birth March 23, 1907 – May 10, 1989

immediate family parents gradparents

college education

bachelors degrees

Yale

Harvard

doctoral thesis on graph theory-  contribution to 4 color thm

Marriage and children

Work

job as Professor

main work-topology

Theory of manifolds

steifel-whitney characteristic classes

papers -a thm on graphs(1931) - non-separable and planar graphs(1932) -Congruent graphs and connectivity of graphs(1932) -The coloring of graphs(1932) -A numerical equivalent of the 4 color map problem (1937) - Came up with theorems on duality in 1939

important work- on algebraic varieties and integration theory

     published book "Geometric integration theory" 1957
               Describes his work on the interactions between algebraic topology and the theory of integration

Beyond advanced mathematics

interest in mathematics teachings in schools

      - actively involved in mathematical education at the elementary school level
      - gave lectures on this topic/ conducted summer courses for teachers
      - Taught pre algebra for 4 months to class of 7th graders

Bibliography

1. Title: Coming Alive in School Math and beyond Author(s): Hassler Whitney Source: Educational Studies in Mathematics, Vol. 18, No. 3, Mathematics Teachers and Student Failure (Aug., 1987), pp. 229-242 Publisher(s): Springer Stable URL: http://www.jstor.org/stable/3482607

2. Title: The Coloring of Graphs Author(s): Hassler Whitney Source: Proceedings of the National Academy of Sciences of the United States of America, Vol. 17, No. 2 (Feb. 15, 1931), pp. 122-125 Publisher(s): National Academy of Sciences Stable URL: http://www.jstor.org/stable/86195

3. Whitney, Hassler.: Geometric integration theory./ Princeton, Princeton University Press, 1957.

4. A Theorem on Graphs Hassler Whitney Annals of Mathematics Second Series, Vol. 32, No. 2 (Apr., 1931), pp. 378-390 Published by: Annals of Mathematics Article Stable URL: http://www.jstor.org/stable/1968197