• Thumbnail for Periodic function
    Periodic function (redirect from Aperiodic)
    that exhibit periodicity. Any function that is not periodic is called aperiodic. A function f is said to be periodic if, for some nonzero constant P,...
    12 KB (1,707 words) - 16:58, 6 June 2024
  • Thumbnail for Aperiodic tiling
    An aperiodic tiling is a non-periodic tiling with the additional property that it does not contain arbitrarily large periodic regions or patches. A set...
    29 KB (3,451 words) - 19:54, 23 July 2024
  • function. Aperiodic may also refer to: Aperiodic finite state automaton Aperiodic frequency Aperiodic graph Aperiodic semigroup Aperiodic set of prototiles...
    524 bytes (92 words) - 09:14, 13 May 2017
  • In mathematics, an aperiodic semigroup is a semigroup S such that every element is aperiodic, that is, for each x in S there exists a positive integer...
    2 KB (285 words) - 21:36, 10 August 2023
  • Thumbnail for Aperiodic crystal
    Aperiodic crystals lack three-dimensional translational symmetry but still exhibit three-dimensional long-range order. In other words, they are periodic...
    7 KB (928 words) - 12:47, 5 April 2024
  • Thumbnail for Einstein problem
    asks about the existence of a single prototile that by itself forms an aperiodic set of prototiles; that is, a shape that can tessellate space but only...
    11 KB (1,161 words) - 01:50, 24 July 2024
  • Thumbnail for Frequency
    recording can show in which of these general regions the recording was made. Aperiodic frequency is the rate of incidence or occurrence of non-cyclic phenomena...
    21 KB (2,290 words) - 11:44, 15 July 2024
  • Thumbnail for Tessellation
    called "non-periodic". An aperiodic tiling uses a small set of tile shapes that cannot form a repeating pattern (an aperiodic set of prototiles). A tessellation...
    58 KB (6,042 words) - 15:25, 3 July 2024
  • Thumbnail for Quasicrystal
    shows sharp peaks with other symmetry orders—for instance, five-fold. Aperiodic tilings were discovered by mathematicians in the early 1960s, and, some...
    48 KB (5,257 words) - 15:50, 4 June 2024
  • Thumbnail for Aperiodic graph
    said to be aperiodic if there is no integer k > 1 that divides the length of every cycle of the graph. Equivalently, a graph is aperiodic if the greatest...
    5 KB (607 words) - 00:06, 7 March 2024
  • Thumbnail for List of aperiodic sets of tiles
    then this set of tiles is called aperiodic. The tilings obtained from an aperiodic set of tiles are often called aperiodic tilings, though strictly speaking...
    37 KB (2,491 words) - 16:46, 8 March 2024
  • Thumbnail for Penrose tiling
    Penrose tiling (category Aperiodic tilings)
    example of an aperiodic tiling. Here, a tiling is a covering of the plane by non-overlapping polygons or other shapes, and a tiling is aperiodic if it does...
    51 KB (5,832 words) - 03:25, 22 July 2024
  • Thumbnail for Loudspeaker enclosure
    similar technique has been used in aftermarket car audio; it is called aperiodic membrane (AP). A resistive mat is placed in front of or directly behind...
    44 KB (5,499 words) - 15:28, 17 July 2024
  • Thumbnail for Aperiodic set of prototiles
    A set of prototiles is aperiodic if copies of the prototiles can be assembled to create tilings, such that all possible tessellation patterns are non-periodic...
    10 KB (1,071 words) - 16:44, 8 March 2024
  • Thumbnail for David Smith (amateur mathematician)
    Bridlington, England, who is best known for his discoveries related to aperiodic monotiles that helped to solve the einstein problem. Smith discovered...
    5 KB (505 words) - 04:23, 16 May 2024
  • Thumbnail for Prototile
    prototile. A set of prototiles is said to be aperiodic if every tiling with those prototiles is an aperiodic tiling. In March 2023, four researchers, Chaim...
    3 KB (352 words) - 22:48, 2 December 2023
  • Thumbnail for Wang tile
    Wang tile (category Aperiodic tilings)
    found. For example, a set of 13 aperiodic tiles was published by Karel Culik II in 1996. The smallest set of aperiodic tiles was discovered by Emmanuel...
    14 KB (1,495 words) - 11:15, 15 May 2024
  • Thumbnail for Necklace (combinatorics)
    {n}{d}}{\bigr )}.} Each aperiodic necklace contains a single Lyndon word so that Lyndon words form representatives of aperiodic necklaces. Lyndon word...
    8 KB (1,111 words) - 10:20, 30 March 2024
  • Thumbnail for Hertz
    a human heart might be said to beat at 1.2 Hz. The occurrence rate of aperiodic or stochastic events is expressed in reciprocal second or inverse second...
    16 KB (1,684 words) - 05:48, 20 July 2024
  • aperiodic: Fourier series Discrete/aperiodic–continuous/periodic: discrete-time Fourier transform Continuous/aperiodic–continuous/aperiodic: Fourier...
    13 KB (1,557 words) - 07:54, 9 July 2024
  • An aperiodic finite-state automaton (also called a counter-free automaton) is a finite-state automaton whose transition monoid is aperiodic. A regular...
    4 KB (377 words) - 22:49, 21 March 2024
  • Thumbnail for Craig S. Kaplan
    David Smith is a solution to the einstein problem, a single shape which aperiodically tiles the plane but cannot do so periodically. Kaplan received BMath...
    10 KB (917 words) - 05:19, 18 July 2024
  • frequency becquerel (Bq) – the SI unit for the rate of occurrence of aperiodic or stochastic radionuclide events baud (Bd) – the unit for symbol rate...
    3 KB (371 words) - 13:02, 25 May 2024
  • Thumbnail for J. Robert Oppenheimer
    Oppenheimer, J.R. (January 1, 1928). "Three Notes on the Quantum Theory of Aperiodic Effects". Physical Review. 31 (1): 66–81. Bibcode:1928PhRv...31...66O...
    170 KB (18,914 words) - 14:29, 22 July 2024
  • Thumbnail for Pythagorean tiling
    an irrational number such as the golden ratio, its cross-sections form aperiodic sequences with a similar recursive structure to the Fibonacci word. Generalizations...
    15 KB (1,817 words) - 16:33, 8 March 2024
  • Thumbnail for Markov chain
    the same period. In particular, if one state is aperiodic, then the whole Markov chain is aperiodic. If a finite Markov chain is irreducible, then all...
    93 KB (12,484 words) - 21:10, 29 June 2024
  • Thumbnail for Antenna array
    array factor's periodicity, the same array's geometry must also be made aperiodic. It is possible to act on the positions of the radiators so that these...
    25 KB (3,307 words) - 23:47, 21 July 2024
  • Thumbnail for Chaim Goodman-Strauss
    is an American mathematician who works in convex geometry, especially aperiodic tiling. He retired from the faculty of the University of Arkansas and...
    9 KB (934 words) - 11:27, 18 July 2024
  • Kakutani–Rokhlin lemma is an important result in ergodic theory. It states that an aperiodic measure preserving dynamical system can be decomposed to an arbitrary...
    23 KB (3,893 words) - 01:17, 4 February 2024
  • "MacTutor History of Mathematics website creators honoured by LMS", The Aperiodical, archived from the original on 2015-07-20, retrieved 2015-07-19. "Chronological...
    5 KB (307 words) - 10:30, 28 May 2024