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...d after the German mathematician [[Erich Schönhardt]], who described it in 1928, although the artist [[Karlis Johansons]] had exhibited a related structure Schönhardt's 1928 discovery of this polyhedron was prompted by earlier work of Nels Johann Le ...

...ath>, which somewhat resembles the hyperoperation sequence.{{sfn|Ackermann|1928}} | Used by [[Wilhelm Ackermann]] (for ''n'' ≥ 1){{sfn|Ackermann|1928}} ...

...ah /> The position wave function is one representation often seen first in introductions to quantum mechanics. The equivalent momentum wave function is another wave ...nature/journal/v121/n3050/abs/121580a0.html ''Nature'' Supplement April 14 1928, '''121''': 580–590].</ref><ref>{{cite book | last=Dirac | first=Paul Adrie ...

* {{Timeline-event |date={{Start date|1928}}|event=Hilbert recasts his 'Second Problem' at the Bologna International C ...[Kurt Gödel]] announces a proof as an answer to the first two of Hilbert's 1928 questions.{{sfn|Reid|1996|p=198}} "At first he [Hilbert] was only angry and ...

...ia|Tatra National Park]] (''TANAP''),<ref name=":16" /> has no doubts that introductions were carried out twice in the Ďumbier area of the Low Tatras. Alpine marmot ...e 30 marmots in the Polish Tatras,<ref name=":12" /> between 1888 – 35, in 1928 and 1952 – 50, in 1982 between 108 and 132, and around 190 individuals in 2 ...

...guage=en}}</ref><ref>{{Cite journal |last=Ladd-Franklin |first=C. F. |date=1928 |title=The Antilogism |url=https://www.jstor.org/stable/2249740 |journal=Mi ...4BBFFAE38831FA9CFF610C417C524273 |access-date=2024-04-28 |series=Cambridge Introductions to Philosophy |edition=2 |place=Cambridge |publisher=Cambridge University P ...