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from article Combinatorial theory
Two orthogonal Latin squares for n = 10. (Courtesy of Thomas Brylawski; Karl Petersen, photographer)
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Image
from article Combinatorial theory
Subdivision of a square into 26 smaller squares; no two of which are the same size. (Photo courtesy of Thomas Brylawski; Karl Petersen, photographer)
Image
from article Riemann surface
Riemann surface for zn. (After A. G. Sveshnikov and A. N. Tikhonov, The Theory of Functions of a Complex Variable, Mir Publishers, 1973)
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from article Riemann surface
Rolling up an ideal hyperbolic square. (After W. Dyck, Ueber Untersuchen und Aufstellung von Gruppe und Irrationalität regulärer Riemann'scher Flächen, Math. Ann., 17:473–509, 1880)
Image
from article Pulsar
An artist's impression of a pulsar, with depicted radiation beams and magnetic field lines. (Credit: NASA)
Image
from article Pulsar
Chart recording of radio emission from the pulsar PSR B0329+54, observed at a frequency of 400 MHz. This pulsar lies at a distance of about 3457 light-years (3.3 × 1016 km or 2.0 × 1016 mi) from Earth.
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from article Pulsar
Average pulse shapes of six pulsars. The data plotted cover a small, roughly 10% fraction of one rotation period. (a) PSR B0329+54. (b) PSR B0950+08. (c) PSR B1237+25. (d) PSR B1508+55. (e) PSR B1642-03. (f) PSR B1919+21.
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from article Pulsar
Individual pulses from pulsar PSR B1133+16, illustrating the variations that take place within pulses and from one pulse to the next.
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from article Pulsar
Distribution of pulsars in galactic coordinates, showing all pulsars known in late 2010. (Credit: Duncan R. Lorimer)
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from article Pulsar
An artist's impression of a binary pulsar, with a pulsar (right) drawing material off a red dwarf companion star (left), gravitationally distorting the latter's shape. (Credit: NASA)
