• Thumbnail for Buchdahl's theorem
    In general relativity, Buchdahl's theorem, named after Hans Adolf Buchdahl, makes more precise the notion that there is a maximal sustainable density...
    7 KB (867 words) - 06:45, 14 February 2025
  • developing f(R) gravity and Buchdahl's theorem on the Schwarzschild's solution for the inside of a spherical star. Hans Adolf Buchdahl was born in Mainz, Germany...
    12 KB (1,180 words) - 14:55, 28 December 2024
  • In mathematics, the Kodaira embedding theorem characterises non-singular projective varieties, over the complex numbers, amongst compact Kähler manifolds...
    4 KB (408 words) - 21:08, 12 October 2024
  • Hubert Bray (Riemannian Penrose inequality), Hans Adolph Buchdahl (Buchdahl fluid, Buchdahl theorem), Claudio Bunster (BTZ black hole, Surface terms in Hamiltonian...
    20 KB (1,819 words) - 22:31, 12 April 2025
  • Thumbnail for Frobenius theorem (differential topology)
    systems Domain-straightening theorem Newlander-Nirenberg Theorem Buchdahl, H. A. (April 1949). "On the Unrestricted Theorem of Carathéodory and Its Application...
    28 KB (4,231 words) - 12:15, 13 November 2024
  • Thumbnail for Timeline of gravitational physics and relativity
    monochromomatic gravitational wave. 1962 – Hans Adolph Buchdahl discovers Buchdahl's theorem. 1962 – Hermann Bondi introduces Bondi mass. 1962 – Hermann...
    151 KB (15,097 words) - 15:17, 30 January 2025
  • Thumbnail for Second law of thermodynamics
    proper definition of entropy and was based on caloric theory, is Carnot's theorem, formulated by the French scientist Sadi Carnot, who in 1824 showed that...
    107 KB (15,472 words) - 01:32, 4 May 2025
  • Cambridge University Press. ISBN 0-521-27703-5. See chapter 10 for the Buchdahl theorem and other topics. Bose, S. K. (1980). An introduction to General Relativity...
    8 KB (923 words) - 16:10, 23 November 2024
  • Thumbnail for Heat death of the universe
    would eventually occur via the Poincaré recurrence theorem, thermal fluctuations, and fluctuation theorem. Through this, another universe could possibly be...
    30 KB (3,520 words) - 23:37, 13 May 2025
  • Thumbnail for Laws of thermodynamics
    now known as the first and second laws were established. Later, Nernst's theorem (or Nernst's postulate), which is now known as the third law, was formulated...
    20 KB (2,893 words) - 08:03, 9 May 2025
  • Nakano vanishing theorems, the Lefschetz hyperplane theorem, Hard Lefschetz theorem, Hodge-Riemann bilinear relations, and Hodge index theorem. On a Riemannian...
    33 KB (4,739 words) - 20:31, 30 April 2025
  • independently by Buchdahl for non-Kahler compact surfaces, and by Jun Li and Yau for arbitrary compact complex manifolds. The theorem can be considered...
    34 KB (4,434 words) - 02:43, 15 January 2025
  • symmetric and static. The static assumption is unneeded, as Birkhoff's theorem states that any spherically symmetric vacuum solution of Einstein's field...
    17 KB (3,716 words) - 14:05, 11 May 2025
  • case of perfect gases, is referred to in what is sometimes called Gibbs' theorem. It states that the entropy of such "mixing" of perfect gases is zero....
    30 KB (4,773 words) - 19:17, 16 April 2025
  • Thumbnail for Temperature
    the classical mechanics of the microscopic particles. The equipartition theorem of kinetic theory asserts that each classical degree of freedom of a freely...
    104 KB (12,997 words) - 02:33, 15 May 2025
  • matter, Buchdahl writes: "If a system is in a terminal condition which is properly static, it will be said to be in equilibrium." Buchdahl's monograph...
    57 KB (7,950 words) - 13:06, 15 March 2025
  • Thumbnail for Zeroth law of thermodynamics
    a third system then they are in thermal equilibrium with each other." Buchdahl, H.A. (1966). The Concepts of Classical Thermodynamics, Cambridge University...
    20 KB (2,670 words) - 06:09, 12 May 2025
  • Thumbnail for Heat
    which transfers of matter do not occur, defined the second fundamental theorem (the second law of thermodynamics) in the mechanical theory of heat (thermodynamics):...
    92 KB (12,978 words) - 10:12, 8 April 2025
  • Thumbnail for First law of thermodynamics
    86. Crawford, F. H. (1963), pp. 106–107. Bryan, G. H. (1907), p. 47. Buchdahl, H. A. (1966), p. 34. Pippard, A. B. (1957/1966), p. 14. Reif, F. (1965)...
    95 KB (14,005 words) - 12:03, 7 May 2025
  • quantities like the average kinetic energy of particles (see equipartition theorem). In experiments ITS-90 is used to approximate thermodynamic scale due...
    16 KB (2,412 words) - 19:07, 27 March 2025
  • theorem, which also applies to Hamiltonian mechanics. However, the meaning of Liouville’s theorem in mechanics is rather different from the theorem of...
    34 KB (6,584 words) - 18:04, 23 October 2024
  • Deconstruction Dedekind cut Deduction Deduction and induction Deduction theorem Deductive Deductive-nomological model Deductive closure Deductive closure...
    73 KB (7,033 words) - 08:19, 21 April 2025
  • Thumbnail for Work (thermodynamics)
    there were, indeed, this function W, we should be able to just use Stokes Theorem to evaluate this putative function, the potential of đW, at the boundary...
    46 KB (7,124 words) - 21:09, 27 March 2025
  • theory of gravity. f(R) gravity was first proposed in 1970 by Hans Adolph Buchdahl (although ϕ was used rather than f for the name of the arbitrary function)...
    25 KB (4,096 words) - 13:49, 24 March 2025
  • Historical Background. Routledge. p. 646. ISBN 978-1-351-30850-2. Campbell's theorem Adler, M.; Hutchings, R. M. (1963). Gateway to the Great Books. Vol. 9...
    6 KB (663 words) - 00:40, 12 May 2024
  • Morse code Harry Nyquist (Ph.D. 1917), engineer known for the Nyquist theorem John Ousterhout (B.S. 1975), creator of the Tcl programming language Ronald...
    231 KB (23,881 words) - 01:01, 17 May 2025