from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A mathematical function that can be used to generate the equations of motion of a dynamic system, equal for many such systems to the sum of the kinetic and potential energies of the system expressed in terms of the system's coordinates and momenta treated as independent variables.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Applied to various mathematical constructs developed or inspired by Hamilton, as in Hamiltonian path, Hamiltonian cycle.
  • n. In quantum mechanics, the observable, denoted by H, that corresponds to the total energy of the system.
  • n. A native or inhabitant of any city named Hamilton.

from The Century Dictionary and Cyclopedia

  • Pertaining to James Hamilton (1769–1831), and especially to a system of teaching languages which he advocated, and which was based upon the two principles that language is to be presented to the scholar as a living organism, and that its laws are to be learned by observation and not by rules.
  • Pertaining to Sir William Hamilton (1788–1856), an influential philosopher and logician of the Scottish school.
  • Pertaining to Sir William Rowan Hamilton (1805–65), an Irish mathematician.
  • Pertaining to or holding the political doctrines of Alexander Hamilton (1757–1804), an American statesman, who was one of the leaders of the Federalist party and the first Secretary of the Treasury.
  • n. A follower of any one of the persons named above. See I.


from The American Heritage® Dictionary of the English Language, 4th Edition

After Sir William Rowan Hamilton (1805-1865), Irish mathematician.

from Wiktionary, Creative Commons Attribution/Share-Alike License

William Rowan Hamilton (1805-1865), Irish mathematician, +‎ -ian.

from Wiktionary, Creative Commons Attribution/Share-Alike License

Hamilton +‎ -ian.


  • I randomly opened a cupboard today to find some interesting stuff – an old journal paper of Dad’s (Hi Dad!) on Liapunov equations in Hamiltonian systems and a diary from when he was around 15.

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  • Agreeing with Aaron: once we represent the results of experiments by operators acting on a Hilbert space, time evolution gives a one-parameter group, so by Stone’s theorem there is a self-adjoint operator, which in the case of time evolution we call the Hamiltonian, that generates the group.

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  • (If a Hamiltonian is a sum of polynomially many local terms, then certainly one can simulate it efficiently on a quantum computer — see here for some pointers to the literature.)

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  • For the interaction picture one splits up the Hamiltonian, which is the generator of time-translations, into two parts H = H0

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  • Because the oscillators are independent, the Hamiltonian is a simple sum: we see that the Hamiltonian of the EM field can be looked upon as a Hamiltonian of independent oscillators of energy ω = |

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  • It smacks of the same kind of Hamiltonian authoritarianism of the global warmers and environmental extremists.

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  • However, chaotic systems such as Hamiltonian chaotic systems will exhibit a radical divergence of these errors or differences in initial conditions

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  • PAUL STREET - Obama was recently hailed as a "Hamiltonian" believer in "limited government" and "free trade" by Republican New York Times columnist David Brooks, who praises Obama for having "a mentality formed by globalization, not the SDS." ...

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  • Paleo-Progressives were not, and are not "New Deal Democrats," -- an appellation that has appropriately been co-opted and appropriated by the self-described "Hamiltonian" LaRouchies.

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  • 1354 R.A. A.BERTY tion of coordinates and velocities, but it is often more convenient to define the Hamiltonian function H with a Legendre transform because the Hamiltonian is a function of coordinates and momenta.

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