ymb

math PhD programs through materialistic lens

A survey of the remunerations of graduate students in math PhD programs in public universities initiated and conducted by Hans Christianson, the Director of Graduate Studies at UNC at Chapel Hill is in, and the results are not hugely surprising. With a few exceptions, the (adjusted for cost of living) yearly stipends are pretty comparable, …

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merge tree monoid

\(\def\Real{\mathbb{R}}\def\tree{\mathcal{T}}\) Consider a path metric space \(M\) and a continuous function \(f:M\to \Real\). For simplicity, all such pairs here will have sublevel sets of \(f\) compact (so that the function is bounded from below). Then one can form the so-called merge tree (see, e.g. here, for motivation, and some history), a new topological space (let’s …

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analytic combinatorics in several variables (aimath, san jose 4-9.4.2022)

\(\def\Comp{\mathbb{C}}\def\Proj{\mathbb{P}}\def\Nat{\mathbb{N}}\) This workshop is about complex analytic techniques usable in applications from classical combinatorial problems to asymptotic representation theory and cluster algebras. The scope is approximately what is covered by Pemantle-Wilson(-Melczer) book. I plan to report on what is going on here (reporting is sporadic and idiosyncratic). Lectures are streamed. Day One (all times PDT): …

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a US-based university under the blue skies, among yellow fields

It’s time to re-up the old story from voiceofrussia.com (since then rebranded as sputniknews.com). The old link leads to nowhere, but sputniknews still holds the grudge… On the right is what they were saying back then; on the left what the current site shows.Note the three airports! Willard, Rantoul airbase, sure, but what else? Frasca …

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