The Species Problem — “… to be able to cut up a kind along its natural joints, and to try not to splinter any part, as a bad butcher
Part, Site, Analysis — Notes on Casati and Varzi’s book, “Parts and places: the structures of spatial representation” (MIT Press). Image derived from [5] and [6].
Like As Not — Metaphor implies repetition with a difference. A catalog might then also be an extended metaphor.
Obituaries: Maryam Mirzakhani (1977 - 2017) — Maryam Mirzakhani died today.
2-butterfly derangement — The hallmark of the Cooley-Tukey algorithm for Fast Fourier Transform is the butterfly network, which helps reduce O(n2) computations to O(nlogn). Butterflies are
Individuation — “Individuation may be thought of as temporary resolutions taking place in the heart of a metastable system rich in potential.” (Simondon)
The Algorithmic Beauty of Plants — “The idea of form implicitly contains also the history of such a form.”
On Naming — “A proper name, when one meets with it for the first time, is existentially connected with some percept or other equivalent individual knowledge of the
Obituaries: Cathleen Morawetz (1923-2017) — In the mathematics of flows and shocks, Cathleen Morawetz, Olga Ladyzhenskaya, and Olga Oleinik together form a singular legacy, an interconnected legacy (Early Memories of
A fearful sphere, whose center is everywhere — In a beautiful article, The Mathematics of Doodling, Ravi Vakil poses two problems:
Maximum weighted independent set - connected component — Given a weighted connected component, what is the weight of the maximum independent set, and how many different sets have this weight? A Petersen graph
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