Harry Pollard | |
|---|---|
| Born | 28 February 1919 |
| Died | 20 November 1985 |
| Alma mater | Harvard University |
| Scientific career | |
| Fields | Celestial mechanics |
| Institutions | |
| Doctoral advisor | David Widder |
| Doctoral students | |
Harry Pollard (28 February 1919 – November 20, 1985)[1] was an American mathematician. He received his Ph.D from Harvard University in 1942 under the supervision of David Widder.[2] He then taught at Cornell University, and was Professor of Mathematics at Purdue University from 1961 until his death in 1985. He is known for his work on celestial mechanics, orthogonal polynomials and the n-body problem[1] as well as for the several textbooks he authored or co-authored.[3][4] In the theory of Orthogonal polynomials, Pollard solved a conjecture of Antoni Zygmund, establishing mean convergence of the partial sums in norms for the Legendre polynomials and Jacobi polynomials in a series of three papers in the Transactions of the American Mathematical Society. The first of these papers deals with the fundamental case of Legendre polynomials. [5] The end point cases in Pollard's theorem was established by Sagun Chanillo. [6]
- ^ a b Saari, D. G. (1985), "In Memorian. Professor Harry Pollard. 1919-1985", Celestial Mechanics, 37 (4): 349, Bibcode:1985CeMec..37..349S, doi:10.1007/bf01261623, MR 0846726, S2CID 189832088.
- ^ Harry Pollard at the Mathematics Genealogy Project
- ^ Cite error: The named reference
w51was invoked but never defined (see the help page). - ^ Cite error: The named reference
k73was invoked but never defined (see the help page). - ^ Pollard, Harry. (1947). "The Mean Convergence of Orthogonal Series I". Transactions of the American Mathematical Society. 62 (3): 387–403. doi:10.1090/S0002-9947-1947-0022932-1.
- ^ Chanillo, Sagun (1981). "On the Weak Behaviour of Partial Sums of Legendre Series". Transactions of the American Mathematical Society. 268 (2): 367–376. doi:10.1090/S0002-9947-1981-0632534-1.