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...ry of Bessel functions. Cambridge university press.</ref><ref>Chapman, S. (1911). On the general theory of summability, with application to Fourier's and o ...interesting because the null function is represented by a series expansion in which not all the coefficients are zero. The series converges only when <ma ...

...ry)|order]] of the group). The study of modular invariants was originated in about 1914 by {{harvtxt|Dickson|2004}}. ...>1</sub>, ...,''X''_''n''] in the natural way, {{harvtxt|Dickson|1911}} found a complete set of invariants as follows. Write [''e''₁, ...

...t eddies''' are sequences of [[Eddy (fluid dynamics)|eddies]] that develop in corners bounded by plane walls (or sometimes between a wall and a free surf ...{{cite journal |last=Shankar |first=P. N. |year=2005 |title=Moffatt eddies in the cone |journal=Journal of Fluid Mechanics |volume=539 |pages=113–135 |do ...

...Joseph Marty (Entry in the database of members of the French army who died in the Second World War)}}</ref> was a French [[mathematician]]. ...ught at the lycée d'Albi and as a French army officer was killed in action in WW I.<ref>{{Cite web |url=https://www.presses.ens.fr/client/document/aubin_ ...

...|the Sierra Leone activist|Adelaide Casely-Hayford|the fictional character in the 1960s Broadway play Tiger, Tiger Burning Bright|Diana Sands}} ...ter life she became the principal of a school for girls, the second oldest in California. ...

...me=":2">{{Cite journal |last=Wallin |first=J. E. Wallace |date=15 December 1911 |title=A Practical Guide for the Administration of the Binet–Simon Scale fo ...est by Binet and Simon stopped in 1911 due to the death of Alfred Binet in 1911.<ref name=":5" /> ...

In [[mathematics]], the '''Krull–Schmidt theorem''' states that a [[group (mat ....com/books?id=e-YlBQAAQBAJ&pg=PA83|date=6 December 2012|publisher=Springer Science & Business Media|isbn=978-1-4612-6101-8|page=83}} ...

...original contribution to the [[old quantum theory]],{{sfn|Abiko|2015|p=3}} in 1915, independently of other scientists, he formulated [[Sommerfeld-Wilson- ...homeland, Ishiwara received a post of professor at Tohoku University, and in 1919 for his scientific work was awarded the [[Imperial Prize of the Japan ...

The '''Goldschmidt alternator''' or '''reflector alternator''', invented in 1908 by German engineer [[Rudolph Goldschmidt]],<ref name="Burns">{{cite bo ...imilar [[Alexanderson alternator]], it was used briefly around World War I in a few high power [[longwave]] [[radio station]]s to transmit transoceanic [ ...

...red to use the finite water-content method is that the soil be homogeneous in layers. ...''J. Adv. Modeling Earth Syst.''https://doi.org/10.1002/2017MS000931</ref> in 2017, showing that this equation is a diffusion-free version of the [[Soil ...

...although the artist [[Karlis Johansons]] had exhibited a related structure in 1921. Schönhardt polyhedra have been used as [[Gadget (computer science)|gadgets]] in a proof that testing whether a polyhedron has a triangulation is [[NP-compl ...

{{Short description|Theorem in set theory}} In [[set theory]], the '''Schröder–Bernstein theorem''' states that, if there ...

...proof) a similar result for the special cases of 5th, 8th and 12th powers in 1839.<ref>Lemmermeyer, p. 392.</ref> ...zeta_m, \zeta_m^2,\dots\zeta_m^m=1</math> are [[unit (ring theory)|unit]]s in <math>\mathcal{O}_m.</math> (There are [[cyclotomic unit|other units]] as w ...

...ory]], a branch of mathematics, '''Mac Lane's coherence theorem''' states, in the words of [[Saunders Mac Lane]], “every diagram commutes”.<ref>{{harvnb| ...tes, where "formal diagram" is an analog of well-formed formulae and terms in [[proof theory]]. ...

...cations to [[drawing]], a '''perspectivity''' is the formation of an image in a [[picture plane]] of a scene viewed from a fixed point. ...s, by the Rules of Geometry".<ref>{{harvnb|Andersen|1992|loc=p. 75}}</ref> In a second book, ''New Principles of Linear Perspective'' (1719), Taylor wrot ...

...1, doi:10.1002/2015WR017126.</ref> which was verified using data collected in a column experimental that was patterned after the famous experiment by Chi ...f name="SMVE2017" /> for calculating vertical flux <math>q</math> of water in the [[vadose zone]] starts with conservation of mass for an unsaturated por ...

...William Airey, a [[stone mason]], and Elizabeth Airey, who were both born in Preston under Scar, North Yorkshire. He was the oldest from four siblings, ...re College, the college did not award its own degrees.}} which was awarded in 1894.<ref name="Nature, Obit" /> ...

...to the lower-right (cooler and less bright), called the [[main sequence]]. In the lower-left is where [[white dwarf]]s are found, and above the main sequ ...pendently in 1911 by [[Ejnar Hertzsprung]] and by [[Henry Norris Russell]] in 1913, and represented a major step towards an understanding of [[stellar ev ...

| 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 ...

{{short description|Unsolved conjecture in number theory}} ...the sum of some other {{mvar|k}}-th powers, then the total number of terms in both sums combined must be at least {{mvar|k}}. ...