• Thumbnail for Fourier series
    A Fourier series (/ˈfʊrieɪ, -iər/) is an expansion of a periodic function into a sum of trigonometric functions. The Fourier series is an example of a...
    72 KB (11,152 words) - 11:43, 12 June 2025
  • Thumbnail for Ulisse Dini
    Luigi Bianchi. Serie di Fourier e altre rappresentazioni analitiche delle funzioni di una variabile reale (Pisa, T. Nistri, 1880) Lezioni di analisi infinitesimale...
    9 KB (887 words) - 10:36, 6 November 2024
  • Dini criterion (category Fourier series)
    Fourier series does not converge at 0 {\displaystyle 0} . Dini, Ulisse (1880), Serie di Fourier e altre rappresentazioni analitiche delle funzioni di...
    1 KB (176 words) - 15:43, 9 December 2024
  • Dini–Lipschitz criterion (category Fourier series)
    respect to δ {\displaystyle \delta } . Dini, Ulisse (1872), Sopra la serie di Fourier, Pisa Golubov, B. I. (2001) [1994], "Dini-Lipschitz criterion", Encyclopedia...
    1 KB (122 words) - 07:50, 29 August 2021
  • Thumbnail for Leonida Tonelli
    Leonida Tonelli (category Academic staff of the Scuola Normale Superiore di Pisa)
    1090/s0002-9904-1925-04002-1. MR 1561014. Serie trigonometriche. Zanichelli, Bologna 1928 Calculus of variations Fourier series Lebesgue integral Mathematical...
    24 KB (1,786 words) - 08:03, 28 May 2025
  • Marcinkiewicz interpolation theorem (category Fourier analysis)
    computed by first taking the Fourier transform of f, then multiplying by the sign function, and finally applying the inverse Fourier transform. Hence Parseval's...
    9 KB (1,488 words) - 16:48, 27 March 2025
  • Emilio Baiada (category Scuola Normale Superiore di Pisa alumni)
    e Fisico dell'Università di Modena from 1977 up to 1983. He published more than 60 papers on differential equations, Fourier series and the series expansion...
    19 KB (1,970 words) - 09:34, 2 June 2025
  • Thumbnail for Pia Nalli
    was an Italian mathematician known for her work on the summability of Fourier series, on Morera's theorem for analytic functions of several variables...
    11 KB (1,119 words) - 11:16, 12 October 2024
  • Thumbnail for Gaetano Fichera
    Classe di Scienze Fisiche, Matematiche e Naturali, Serie VIII (in Italian), 70 (5): 233–240, Zbl 0504.01031. Fichera, Gaetano (1982d), "I contributi di Guido...
    106 KB (12,054 words) - 05:25, 11 March 2025
  • Encyclopedia of Mathematics, EMS Press Jordan, Camille (1881), "Sur la série de Fourier", Comptes rendus hebdomadaires des séances de l'Académie des sciences...
    25 KB (3,547 words) - 10:19, 19 June 2025
  • de l'URSS. Nouvelle Série. 20: 5–9. Gagliardo, Emilio (1958). "Proprietà di alcune classi di funzioni in più variabili". Ricerche di Matematica. 7: 102–137...
    21 KB (3,187 words) - 07:52, 6 May 2025
  • Accademia Nazionale dei Lincei. Rendiconti. Classe di Scienze Fisiche, Matematiche e Naturali, Serie VIII (in Italian), LXXXII (3–4): 145–150, MR 0264472...
    16 KB (1,443 words) - 22:26, 6 July 2025
  • functions of bounded variation. Jordan, Camille (1881), "Sur la série de Fourier" [On Fourier's series], Comptes rendus hebdomadaires des séances de l'Académie...
    61 KB (8,441 words) - 20:55, 29 April 2025
  • Thumbnail for Fermat's Last Theorem
    della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti Lincei. Serie IX. Matematica e Applicazioni. 36: 34–70...
    103 KB (11,700 words) - 00:01, 6 July 2025
  • Thumbnail for Griko people
    una serie di voci che si prestano semanticamente e foneticamente Stamuli, Maria Francesca (2008). Morte di lingua e variazione lessicale nel greco di Calabria...
    83 KB (9,445 words) - 09:44, 1 July 2025
  • Thumbnail for Ivor Grattan-Guinness
    Occurrences after 1750." Physis: Rivista Internazionale di Storia della Scienza XXXVII. Nuova Serie. Fasc. 2. 2000: 467–500. 2001. "Manifestations of Mathematics...
    19 KB (2,062 words) - 21:27, 27 March 2025
  • Thumbnail for Riemann hypothesis
    function form a quasicrystal, a distribution with discrete support whose Fourier transform also has discrete support. Dyson (2009) suggested trying to prove...
    127 KB (16,781 words) - 22:34, 19 June 2025
  • Parametrix (category Fourier analysis)
    Rendiconti della Reale Accademia dei Lincei, Classe di Scienze Fisiche, Matematiche, Naturali, Serie V, 16 (12): 932–938, JFM 38.0403.01 (in Italian). Levi...
    8 KB (1,047 words) - 00:37, 20 May 2025
  • Thumbnail for Freeman Dyson
    šnirel'man's constant". Annali della Scuola Normale Superiore di Pisa. Classe di Scienze. Serie IV. 22 (4): 645–706. Retrieved 13 March 2009. Ridley, Matt...
    85 KB (8,580 words) - 14:50, 27 May 2025
  • Thumbnail for Planck's law
    allowing energetic interaction between their own multiple internal discrete Fourier frequency components, on the occasions of emission or absorption of quanta...
    141 KB (18,065 words) - 17:33, 12 June 2025
  • G (1987). "Sur une question de V. A. Lebesgue". Annales de l'Institut Fourier. 37 (3): 19–37. doi:10.5802/aif.1096. Ribenboim, pp. 57–63. Lamé G (1839)...
    54 KB (5,155 words) - 13:31, 12 April 2025
  • Thumbnail for Benzene
    (1931). "An X-Ray Analysis of the Structure of Hexachlorobenzene, Using the Fourier Method". Proceedings of the Royal Society. 133A (822): 536–553. Bibcode:1931RSPSA...
    92 KB (9,592 words) - 00:25, 6 July 2025
  • using the standard definition of pointwise convergence. For example, a Fourier series of sine and cosine functions, all continuous, may converge pointwise...
    36 KB (4,390 words) - 23:40, 29 June 2025
  • Thumbnail for 20000 Varuna
    possible satellite might be orbiting Varuna at a close distance. By using the Fourier analysis method of combining four separate light curves obtained in 2019...
    68 KB (6,703 words) - 22:50, 30 June 2025
  • Thumbnail for Reincarnation
    thinkers, such as Henri de St. Simon, Barthélemy-Prosper Enfantin and Charles Fourier, who, in addition to discussing the evolution of the soul, saw reincarnation...
    164 KB (19,845 words) - 21:43, 23 June 2025
  • Thumbnail for Symmetric group
    Gerolamo Cardano, while the A3 kernel corresponds to the use of the discrete Fourier transform of order 3 in the solution, in the form of Lagrange resolvents...
    46 KB (6,212 words) - 00:39, 20 June 2025
  • Caffarelli, Luis (July 1998), "The obstacle problem revisited", The Journal of Fourier Analysis and Applications, 4 (4–5): 383–402, Bibcode:1998JFAA....4..383C...
    16 KB (1,968 words) - 13:13, 28 May 2025
  • Thumbnail for Louis Nirenberg
    standard textbooks on probability, complex analysis, harmonic analysis, Fourier analysis, and partial differential equations. Among other applications...
    62 KB (5,007 words) - 22:08, 6 June 2025
  • equation on the grid, which can be computed in O(n log n) time using fast Fourier transform or O(n) time using multigrid techniques. This can provide fast...
    67 KB (8,738 words) - 23:24, 28 June 2025
  • Thumbnail for Progress
    Brunetiere, "La Formation de l'idee de progres", in Etudes critiques, 5e serie. More recently M. Jules Delvaille has attempted to trace its history fully...
    55 KB (7,233 words) - 21:26, 31 May 2025