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| birth_date = 13 August 1893 | death_date = {{death-date and age|24 December 1939|13 August 1893}} ...

...heorem was originally formulated by [[Giulio Vivanti ]] in 1893 and proved in the following year by [[Alfred Pringsheim]]. *Reinhold Remmert: ''The Theory of Complex Functions''. Springer Science & Business Media, 1991, {{ISBN|9780387971957}}, p. [https://books.google.co ...

In [[algebraic geometry]], the '''Castelnuovo–Mumford regularity''' of a [[coh ...harvs|txt|first=Guido| last=Castelnuovo|author-link=Guido Castelnuovo|year=1893}}: ...

...lambda</math>. When the flow stays between zero and infinity, the point is in an unstable equilibrium (semi-stable). This analogy with [[mechanical equil ...or example [[simple group]]s, which have no non-trivial normal subgroups). In addition to stability, some objects may be described with terms such as ''' ...

{{short description|1893 book on making polygons with origami}} | name = Geometric Exercises in Paper Folding ...

...lar cuboid''' is a special case of a [[cuboid]] with [[rectangular]] faces in which all of its [[dihedral angle]]s are [[right angle]]s. This shape is a |{{harvp|Dupuis|1893|p=[https://archive.org/details/elementssynthet01dupugoog/page/n68 68]}} ...

...|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. ...

...ovember 1866 – 12 August 1945) was a German [[mathematician]] specializing in [[differential geometry]]. Scheffers was born on 21 November 1866 in the village of Altendorf near [[Holzminden]] (today incorporated into Holzm ...

...omes from an observation made by [[William Morris Mordey|W. M. Mordey]] in 1893 that the curve resembles a letter V.{{sfn|M.I.E.E.|1906|p=591}} ...ecrease in power factor has to be accommodated by a corresponding increase in the armature current <math>I_A</math>.{{sfn|Dawes|1922|p=315}} At the low v ...

...}</ref> and Bauer's conic sections. He earned a footnote in the history of science as the doctoral advisor (''Doktorvater'') of [[Heinrich Burkhardt]], who be ...r Gustav Lejeune Dirichlet]]. From 1842 Gustav Bauer continued his studies in [[Paris]] under [[Joseph Liouville]], as well as other mathematicians. ...

...''}},}} but <code>cis(x)</code> is widely used as a name for this function in [[Library (computing)|software libraries]]. ...on]] is usually <math>x \in \mathbb{R}</math>, [[complex value]]s <math>z \in \mathbb{C}</math> are possible as well: ...

{{Short description|Functions for thermal radiation in hot enclosures}} ...ical or axial symmetry). W. G. Bickley was a British mathematician born in 1893.<ref>G. S. Marliss W. A. Murray, William G. Bickley—An appreciation, Comput ...

'''Franz Rudolf Paul Gruner''' (13 January 1869 in [[Bern]] &ndash; 11 December 1957) was a [[Switzerland|Swiss]] [[physicist] ...13 to 1939 professor ordinarius for [[theoretical physics]] (the first one in Switzerland). From 1921 to 1922 he was [[Rector (academia)|rector]] of this ...

...nts of a [[Group action (mathematics)|group action]] on a [[vector space]] in terms of [[eigenvalues and eigenvectors|eigenvalues]] of 1-parameter [[subg *'''semi-stable''' if 0 is not contained in the closure of its orbit, and '''unstable''' otherwise; ...

.../> He then began his research in [[psychophysics]] with [[Gustav Fechner]] in 1865.<ref name=":1" /> Delboeuf began his psychophysical experimentation on [[brightness]] in 1865 with [[Gustav Fechner]]. Delboeuf introduced the concept of sense dist ...

...alter">Walter (2018)</ref><ref name="warwick">Warwick (1992), (2012)</ref> In addition, it can be shown that the conformal group of the plane (correspond === Development in the 19th century === ...

...a [[lock-in amplifier]] may be used to suppress unwanted noise, resulting in the ability to detect reflectance changes at the ppm level. ...ion of [[semiconductor]] samples has been recognized since the late 1960s. In particular, ...

...called "algebra", while the term "abstract algebra" is seldom used except in [[mathematical education|pedagogy]]. ...as single objects. For example, the structure of groups is a single object in universal algebra, which is called the ''[[variety (universal algebra)|vari ...

...ystem.<ref>[https://www.youtube.com/watch?v=y4HrlRaY_CM resonant structure in only the secondary side]</ref>　This is called 2nd-resonance technology.<ref ...he rectifier, by small coils which also served for [[impedance matching]]. In this regard, MIT researchers believe they discovered a new way to wirelessl ...

...oi/abs/10.1142/9789814719063_0023|journal=Unified Field Mechanics: Natural Science Beyond the Veil of Spacetime, Morgan State University, USA, 16–19 November ...and equations differing only by some small factors were first published in 1893, before general relativity, by [[Oliver Heaviside]] as a separate theory ex ...