Spectral Theory of Ordinary Differential Equations/classical Sturm-liouville Theory

Famous quotes containing the words spectral, theory, ordinary, differential and/or classical:

    How does one kill fear, I wonder? How do you shoot a spectre through the heart, slash off its spectral head, take it by its spectral throat?
    Joseph Conrad (1857–1924)

    Freud was a hero. He descended to the “Underworld” and met there stark terrors. He carried with him his theory as a Medusa’s head which turned these terrors to stone.
    —R.D. (Ronald David)

    The Anglican Church is marked by the grace and good sense of its forms, by the manly grace of its clergy. The gospel it preaches is, “By taste are ye saved.” ... It is not in ordinary a persecuting church; it is not inquisitorial, not even inquisitive, is perfectly well bred and can shut its eyes on all proper occasions. If you let it alone, it will let you alone. But its instinct is hostile to all change in politics, literature, or social arts.
    Ralph Waldo Emerson (1803–1882)

    But how is one to make a scientist understand that there is something unalterably deranged about differential calculus, quantum theory, or the obscene and so inanely liturgical ordeals of the precession of the equinoxes.
    Antonin Artaud (1896–1948)

    Compare the history of the novel to that of rock ‘n’ roll. Both started out a minority taste, became a mass taste, and then splintered into several subgenres. Both have been the typical cultural expressions of classes and epochs. Both started out aggressively fighting for their share of attention, novels attacking the drama, the tract, and the poem, rock attacking jazz and pop and rolling over classical music.
    W. T. Lhamon, U.S. educator, critic. “Material Differences,” Deliberate Speed: The Origins of a Cultural Style in the American 1950s, Smithsonian (1990)