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...ctra| journal = The Astrophysical Journal| accessdate = 2020-12-15| year = 1939| bibcode = 1939ApJ....90..439I| url = http://adsabs.harvard.edu/abs/1939ApJ In a plasma, atomic levels are broadened and shifted due to the [[Stark effect ...

...a '''Böhmer integral''' is an [[integral]] introduced by {{harvtxt|Böhmer|1939}} generalizing the [[Fresnel integral]]s. Consequently, Fresnel integrals can be expressed in terms of the Böhmer integrals as ...

In mathematics, the '''Faber polynomials''' ''P''_''m'' of a [[Laure ...9}} and studied by {{harvs|txt|last=Grunsky|authorlink=Helmut Grunsky|year=1939}} and {{harvs|txt|last=Schur|authorlink=Issai Schur|year=1945}}. ...

| death_date = {{death-date and age|24 December 1939|13 August 1893}} '''Walter Gordon''' (13 August 1893 – 24 December 1939) was a German theoretical [[physicist]]. ...

...ucht Graph|mode=cs2}}</ref> It was first described by [[Robert Frucht]] in 1939.<ref name="f38"/> ...am.org/item?id=CM_1939__6__239_0 | language=German | zbl=0020.07804 | year=1939 | journal=Compositio Mathematica | issn=0010-437X | volume=6 | pages=239–25 ...

...ume of tubes |journal=[[American Journal of Mathematics]] |volume=61 |year=1939| pages=461–472 |jstor=2371513}} ...ience+Business Media]] |isbn=978-3-0348-9639-9 |year=2004 |series=Progress in Mathematics, volume 221 |doi=10.1007/978-3-0348-7966-8_1}} ...

...ack polynomials''' are a generalization introduced by {{harvtxt|Pasternack|1939}}. where ''P''_''n'' is a [[Legendre polynomial]]. In terms of [[generalized hypergeometric function]]s, they are given by ...

| birth_date = {{Birth date and age|1939|07|20|df=yes}} ...06|publisher=DCW Industries, Inc.|isbn=978-1-928729-08-2|edition=3}}</ref> In 1994, he became a [[Fellow of the Royal Society]].<ref>[http://royalsociety ...

{{Short description|American mathematician (1939–2020)}} | birth_date = {{Birth date|1939|12|10}} ...

{{short description|English mathematician (1939–2018)}} | birth_date = {{birth date|1939|08|19|df=y}} ...

...cted Fellow of the [[American Association for the Advancement of Science]] in 1984. ...ent at [[Yale University]], where he graduated with M.A. in 1963 and Ph.D. in 1966. His doctoral dissertation was ''Two Problems of Fourier Analysis on T ...

...f the concentration [[Flossenbürg concentration camp|camp of Flossenbürg]] in Germany. As a mathematician he worked on [[differential geometry]] and [[to ...es fibrés|author=J. Feldbau|journal=C. R. Acad. Sci. Paris|volume=208|year=1939|pages=1621–1623}}</ref> ...

...ey were introduced by {{harvs|txt|last=Szegő|year1=1920|year2=1921|year3=1939}}. ...u</math> be a probability measure on the unit circle <math>\mathbb{T} =\{z\in\mathbb{C} :|z|=1\}</math> and assume <math>\mu</math> is nontrivial, i.e., ...

In [[general relativity]], the '''Oppenheimer–Snyder model''' is a solution to ...sts [[J. Robert Oppenheimer]] and [[Hartland Snyder]], who published it in 1939.<ref name=":4" /> ...

...link=Ilya Piatetski-Shapiro|last=Piatetski-Shapiro|year1=1959|year2=1969}} in his study of bounded homogeneous domains. :<math>\Im(z)\in V \, </math> ...

...one of the first to apply rigorous [[thermodynamic analysis]] to problems in [[extractive metallurgy]]<ref name="F281a"/> and was the inventor of the su ...e}} in honour of its most famous pupil, and matriculated with distinction in 1917.<ref name="F275"/> ...

| awards = Many, including [[National Medal of Science]] ...titative determination of aliphatic amino groups: some applications of it in the chemistry of proteins, urine, and enzymes), ''Berichte der Deutschen Ch ...

...t]], which assumes that investment intentions depend on the pace of growth in economic activity. ...nment spending intentions are not influenced by any of the other variables in the model. For example, the level of government spending could be used as t ...

...of the history of the identity, it has been ascertained that Li Jen-Shu is in fact Li Shanlan.<ref name=history/> Western scholars had been studying Chin Li Shanlan did not present the identity in this way. He presented it in the traditional Chinese algorithmic and rhetorical way.<ref>{{cite book|fir ...

...er 11, 2020}}</ref> known as "Pete", was an American mathematician working in [[algebraic topology]], known for the concept of [[Bousfield localization]] ...rsity of Illinois at Chicago]] where he worked from 1972 to his retirement in 2000. ...