Journal of Approximation Theory [JAT]

DECLARATION

Since 1968, Journal of Approximation Theory (JAT) has served the mathematics community as one of the leading and most respected journals in approximation theory and related areas of pure and applied mathematics. In 2025, the Publisher at Elsevier made several decisions that an overwhelming majority of the editors of JAT found deeply problematic and likely to have a negative impact on the journal's future. After efforts to resolve these concerns through discussions with the Publisher proved unsuccessful, all but a handful of the Editorial Board members resigned, as they found the Publisher's decisions unacceptable. While the Publisher may attempt to keep the brand alive, in our view the journal, as we knew it, has ceased to exist. Nevertheless, we remain committed to preserving the spirit, standards, and tradition that have long defined JAT.

Sincerely, Carl de Boor, Jonathan Breuer, Martin Buhmann, Charles Chui, Tom Claeys, Patrick Louis Combettes, Wolfgang Dahmen, Feng Dai, Sergey Denisov, Ronald A. DeVore, Frank Deutsch, Josef Dick, Zeev Ditzian, Antonio J. Duran, Nira Dyn, Tamas Erdelyi, Hans G. Feichtinger, Leonid Golinskii, Karlheinz Groechenig, Bin Han, Mourad Ismail, Michael J. Johnson, Sergey Khrushchev, Erik Koelink, Kirill Kopotun, Andras Kroo, Natan Kruglyak, Arno Kuijlaars, Dany Leviatan, Guillermo Lopez Lagomasino, Doron Lubinsky, Francisco Marcellan, Andrei Martinez Finkelshtein, Hrushikesh N. Mhaskar, Paul Nevai, Peter Oswald, Pencho Petrushev, Allan Pinkus, Andriy Prymak, Ulrich Reif, Amos Ron, Edward B. Saff, Robert Schaback, Zuowei Shen, Winfried Sickel, Barry Simon, Vladimir Temlyakov, Vilmos Totik, Walter Van Assche, Roderick S.C. Wong, and Yuan Xu

The Tables of Contents (TOCs) of most JAT issues published since Number 1, Volume 1, in June of 1968.

History of Approximation Theory and Surveys in Approximation Theory.

OP-SF-NET (Orthogonal Polynomials and Special Functions Network) and NA-NET (Numerical Analysis Network).

Journal of Approximation Theory, Constructive Approximation [at Springer Nature], East Journal on Approximations, and Jaen Journal on Approximation (sadly, both JJA and EJA are history now).

P.S. If you find dead links, please contact me (PaulN).