Work
Sobolev introduced the notions that are now fundamental for several areas of mathematics. Sobolev spaces can be defined by some growth conditions on the Fourier transforms; they and their embedding theorems are an important subject in functional analysis. Generalized functions (later known as distributions) were first introduced by Sobolev in 1935 for weak solutions, and further developed by Laurent Schwartz. Sobolev abstracted the classical notion of differentiation so expanding the ranges of applications of the technique of Newton and Leibniz. The theory of distribution is considered now as the calculus of the modern epoch.
Read more about this topic: Sergei Sobolev
Famous quotes containing the word work:
“America lives in the heart of every man everywhere who wishes to find a region where he will be free to work out his destiny as he chooses.”
—Woodrow Wilson (1856–1924)
“Work is a responsibility most adults assume, a burden at times, a complication, but also a challenge that, like children, requires enormous energy and that holds the potential for qualitative, as well as quantitative, rewards. Isn’t this the only constructive perspective for women who have no choice but to work? And isn’t it a more healthy attitude for women writhing with guilt because they choose to compound the challenges of motherhood with work they enjoy?”
—Melinda M. Marshall (20th century)
“Some of the smartest women in the country said that they’re too embarrassed to attend their reunions at Harvard Business School if they have dropped out of the work force, left the fast track by choosing part-time work, or decided to follow anything other than the standard male career path.”
—Deborah J. Swiss (20th century)