**Robert Mark Goresky** is a Canadian mathematician who invented intersection homology with his advisor and life partner Robert MacPherson.

Goresky received his Ph.D. from Brown University in 1976. His thesis, titled *Geometric Cohomology and Homology of Stratified Objects*, was written under the direction of MacPherson.^{[1]} Many of the results in his thesis were published in 1981 by the American Mathematical Society. He has taught at the University of British Columbia in Vancouver, and Northeastern University.^{[citation needed]}

Goresky received a Sloan Research Fellowship in 1981.^{[2]} He received the Coxeter–James Prize in 1984.^{[3]} In 2002, Goresky and MacPherson were jointly awarded the Leroy P. Steele Prize for Seminal Contribution to Research by the American Mathematical Society.^{[4]}^{[5]}
In 2012 Goresky became a fellow of the American Mathematical Society.^{[6]}

Goresky's PhD advisor, Robert D. MacPherson, later became his life partner. Their discovery of intersection homology made "both of them famous."^{[7]} After the collapse of the Soviet Union, they were instrumental in channeling aid to Russian mathematicians, especially many who had to hide their sexuality.^{[7]}

- Goresky, Mark; MacPherson, Robert,
*La dualité de Poincaré pour les espaces singuliers*, C. R. Acad. Sci. Paris Sér. A-B 284 (1977), no. 24, A1549–A1551. MR0440533 - Goresky, Mark; MacPherson, Robert,
*Intersection homology theory*, Topology 19 (1980), no. 2, 135–162. doi:10.1016/0040-9383(80)90003-8 MR0572580 - Goresky, Mark,
*Whitney stratified chains and cochains*, Trans. Amer. Math. Soc. 267 (1981), 175–196. - Goresky, Mark; MacPherson, Robert,
*Intersection homology. II*, Inventiones Mathematicae 72 (1983), no. 1, 77–129. doi:10.1007/BF01389130 MR0696691 - Goresky, Mark; MacPherson, Robert,
*Stratified Morse Theory, Springer Verlag, N. Y. (1989), Ergebnisse vol. 14.*