Gustav Herglotz Explained

Gustav Herglotz
Birth Date:2 February 1881
Birth Place:Wallern, Bohemia, Austria-Hungary
Death Place:Göttingen, Germany
Nationality:German
Fields:Physics, Applied mathematics
Workplaces:University of Leipzig
Alma Mater:University of Göttingen
LMU Munich
Doctoral Advisor:Hugo von Seeliger
Ludwig Boltzmann
Doctoral Students:Emil Artin
Known For:Hergoltz formulas
Herglotz–Noether theorem
Herglotz-Riesz representation theorem
Herglotz–Zagier function
Wiechert–Herglotz method

Gustav Herglotz (2 February 1881 – 22 March 1953) was a German Bohemian physicist best known for his works on the theory of relativity and seismology.

Biography

Gustav Ferdinand Joseph Wenzel Herglotz was born in Volary num. 28 to a public notary Gustav Herglotz (also a Doctor of Law) and his wife Maria née Wachtel.[1] The family were Sudeten Germans. He studied mathematics and astronomy at the University of Vienna in 1899, and attended lectures by Ludwig Boltzmann. In this time of study, he had a friendship with his colleagues Paul Ehrenfest, Hans Hahn and Heinrich Tietze. In 1900 he went to the LMU Munich and achieved his Doctorate in 1902 under Hugo von Seeliger. Afterwards, he went to the University of Göttingen, where he habilitated under Felix Klein. In 1904 he became Privatdozent for Astronomy and Mathematics there, and in 1907 Professor extraordinarius. In 1908 he became Professor extraordinarius in Vienna, and in 1909 at the University of Leipzig. From 1925 (until becoming Emeritus in 1947) he again was in Göttingen as the successor of Carl Runge on the chair of applied mathematics. One of his students was Emil Artin.

Work

Herglotz worked in the fields of seismology, number theory, celestial mechanics, theory of electrons, special relativity, general relativity, hydrodynamics, refraction theory.

R3

, by which he classified the one-parameter Lorentz transformations into loxodromic, parabolic, elliptic, and hyperbolic groups (see Möbius transformation#Lorentz transformation).

\forallz\inD  f(z) =\int\partial

λ+z
λ-z

d\mu(λ).

The theorem also asserts that the probability measure is unique to f.

Selected works

See also

External links

Notes and References

  1. Web site: DigiArchiv of SRA Trebon - ver. 22.05.20 . 2022-05-25 . digi.ceskearchivy.cz.
  2. Herglotz, Gustav . 1904 . Über die Berechnung retardierter Potentiale. Gött. Nachr. . 6 . 549–556.
  3. Sommerfeld, Arnold . 1910 . Zur Relativitätstheorie II: Vierdimensionale Vektoranalysis. . Annalen der Physik . 338 . 14 . 649–689. 10.1002/andp.19103381402. 1910AnP...338..649S.
  4. [Jim Agler]
  5. English translation by David Delphenich: On the mechanics of deformable bodies from the standpoint of relativity theory.
  6. G. Herglotz, Zur Einsteinschen Gravitationstheorie, Ber. über d. Verh. d. königl. sächs. Gesellsch. d. Wissensch. zu Leipzig, pp. 199–203 (1916).

  7. In English: Book: Pauli, W.. Theory of Relativity. Fundamental Theories of Physics. 165. Dover Publications. 1981. 1921. 0-486-64152-X.
  8. Bochner, Salomon. Salomon Bochner. Review: Gesammelte Schriften, by Gustav Herglotz. Bull. Amer. Math. Soc. (N.S.). 1979. 1. 6. 1020–1022. 10.1090/s0273-0979-1979-14724-4. free.
  9. Longley, W. R.. Review: Ueber die analytische Fortsetzung des Potentials ins Innere der anziehenden Massen, by Gustav Herglotz. Bull. Amer. Math. Soc.. 1916. 22. 7. 361–364. 10.1090/s0002-9904-1916-02805-9. free.