Abstract
This is a personal account describing the evolution of the concept of Λ-bounded variation. Earlier generalizations of bounded variation are described. A test for the convergence of Fourier series due to Salem was pivotal, leading to a condition for preservation of convergence of Fourier series under change of variable and, finally, to a new notion of bounded variation. Some applications and generalizations to higher dimensions are indicated.
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Dedicated to the memory of Casper Goffman, my friend, colleague, and coworker
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Waterman, D. (2012). The Path to Λ-Bounded variation. In: Bilyk, D., De Carli, L., Petukhov, A., Stokolos, A., Wick, B. (eds) Recent Advances in Harmonic Analysis and Applications. Springer Proceedings in Mathematics & Statistics, vol 25. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-4565-4_29
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