# stevenson (blogs) — RSS Amplifier Recent posts from the 3 feeds in the RSS Amplifier directory that cover stevenson. Page: Feed: --- ## [Venice, Picturesque Notes, part 2](https://edrls.wordpress.com/2026/07/20/venice-picturesque-notes-part-2/) _2026-07-20 · rdury · EdRLS_ RLS 2026 (Venice, 11–12 May 2026) Day 2 Waking in Venice, then going for a walk outside, is a simple pleasure: the maze of quiet streets, the views from bridges, the themes and variations of the houses, the picturesque way you do not take and is never re-found, odd workshops just opening, a barge of \[ \] ## [Venice, Picturesque Notes](https://edrls.wordpress.com/2026/07/09/8507/) _2026-07-09 · rdury · EdRLS_ RLS 2026 (Venice, 11–12 May 2026) Day 1 Arriving in Venice—is any city arrival more memorable? The Venetian lagoon persuades you—despite the striped posts marking navigation channels—that this is indeed the open sea with an archipelago of islands, and the first sight of the sea is always magical to us inlanders. At the end of \[ \] ## [Robert Louis Stevenson’s Inland Voyage Notebook,](https://edrls.wordpress.com/2026/06/10/robert-louis-stevensons-inland-voyage-notebook/) _2026-06-10 · rdury · EdRLS_ ed. Richard Dury with Mafalda Cipollone, original transcription by Elaine Greig (The Lamplight Press, 2026) . This new publication is a transcription of the notebook kept by Stevenson during his ‘inland voyage’, with an introduction, a map and appendices. It contains numerous passages with no equivalents in the published text and allows a precise reconstruction \[ \] ## [PSA: a category satisfying all but the smallness condition from Giraud’s theorem…](https://thehighergeometer.wordpress.com/2025/12/05/psa-a-category-satisfying-all-but-the-smallness-condition-from-girauds-theorem/) _2025-12-05 · David Roberts · theHigherGeometer_ I'm surprised people in the area of condensed mathematics haven't adopted this term that's at least 50 years old ## [An example of a presheaf without an associated sheaf – UPDATED](https://thehighergeometer.wordpress.com/2025/12/01/an-example-of-a-presheaf-without-an-associated-sheaf/) _2025-12-01 · David Roberts · theHigherGeometer_ On a large site there are presheaves that may not have associated sheaves. I walk through an example of this that is less tied to a specific choice of set theory ## [A game strategy that depends on the Continuum Hypothesis?](https://thehighergeometer.wordpress.com/2025/11/19/a-game-strategy-that-depends-on-the-continuum-hypothesis/) _2025-11-18 · David Roberts · theHigherGeometer_ A fun problem about an optimal strategy for a game with ordinals ## [The ATLAS of Finite Groups is sound](https://thehighergeometer.wordpress.com/2025/09/27/the-atlas-of-finite-groups-is-sound/) _2025-09-27 · David Roberts · theHigherGeometer_ I missed this at the end of last year, but I had been periodically looking to see if it had been done: the last gap in verifying that the ATLAS of Finite Groups is bug-free has been filled! (Added: not formally verified, I might add, just in the old-fashioned sense of the tables being replicated … Continue reading The ATLAS of Finite Groups is sound ## [Reading for Pleasure: What is It?](https://amysmithliterature.wordpress.com/2025/09/20/reading-for-pleasure-what-is-it/) _2025-09-20 · Amy Smith · Amy Smith Literature_ It has been a busy few weeks in the realm of engaging students with reading. Our Year 6 Summer Reading Challenge has drawn to a close (with students responding creatively to the novel they read over the 6 weeks), Open Evening in the school library (where students added their favourite books to our shelfie display), Continue reading "Reading for Pleasure: What is It?" ## [Reading for Pleasure: Inspiring Older Students](https://amysmithliterature.wordpress.com/2025/09/20/reading-for-pleasure-inspiring-older-students/) _2025-09-20 · Amy Smith · Amy Smith Literature_ A long time has passed since my last blog post: too long! I have almost forgotten the joy of writing these. But in that time I have been working on another project (watch this space), as well as some resources for students: my Macbeth revision videos are now available here and my updated Othello teaching Continue reading "Reading for Pleasure: Inspiring Older Students" ## [Glue work instead of pasting diagrams](https://thehighergeometer.wordpress.com/2025/08/20/glue-work-instead-of-pasting-diagrams/) _2025-08-20 · David Roberts · theHigherGeometer_ Reflections on "glue work" ## [Refer a Friend, Earn Rewards (Sponsored)](https://crawlproof.com/a/j8EbU6dyWOTN) _2025-08-20 · **Sponsored**_ Earn rewards when friends get the Graphite Business Card through your referral. ## [BB(5)=47,176,870: BB(6) is … astronomically larger](https://thehighergeometer.wordpress.com/2025/07/09/bb547176870-bb6-is-astronomically-larger/) _2025-07-09 · David Roberts · theHigherGeometer_ Good news everyone! Even \*longer\* running halting Turing machines with just six states. ## [Infinite descent in ancient times](https://thehighergeometer.wordpress.com/2025/01/21/infinite-descent-in-ancient-times/) _2025-01-21 · David Roberts · theHigherGeometer_ Is this the oldest example of the well-foundedness of the naturals being explicitly mentioned? ## [The MS of Strange Case of Dr Jekyll and Mr Hyde](https://edrls.wordpress.com/2025/01/08/the-ms-of-strange-case-of-dr-jekyll-and-mr-hyde/) _2025-01-08 · rdury · EdRLS_ Stevenson s (incomplete) autograph manuscript of Strange Case of Dr Jekyll and Mr Hyde has been part of the Morgan Library in New York since 1909. Now digital images (for high-definition and enlargeable images, press the zoom button) of every page have been made on the LIbrary s website. The extant MS covers just over half of \[ \] ## [Morphisms between abelian differentiable gerbes](https://thehighergeometer.wordpress.com/2024/11/10/morphisms-between-abelian-differentiable-gerbes/) _2024-11-10 · David Roberts · theHigherGeometer_ Following on from last post I want to talk about the appropriate notion of morphism between the objects I defined. Recall that these are Lie groupoids with a map to the manifold satisfying some properties ( and are surjective submersions), and then equipped with a little bit of extra structure. We will fix a bundle … Continue reading Morphisms between abelian differentiable gerbes ## [Small fun observation about finite topological spaces, and some challenges](https://thehighergeometer.wordpress.com/2024/09/20/small-fun-observation-about-finite-topological-spaces-and-some-challenges/) _2024-09-20 · David Roberts · theHigherGeometer_ Here’s a fun thing: if you want to generate a random finite space, instead select a random subset from , the -fold power of the Sierpinski space , since every space embeds into some (arbitrary) product of copies of the Sierpinski space. (Recall that has underlying set , and the only open subsets are . … Continue reading Small fun observation about finite topological spaces, and some challenges ## [Abelian differentiable gerbes – recap](https://thehighergeometer.wordpress.com/2024/09/15/abelian-differentiable-gerbes-recap/) _2024-09-14 · David Roberts · theHigherGeometer_ Bundle gerbes are a class of objects that are my bread and butter, but there are many different ways of thinking about them. In my paper with Raymond Vozzo we wrote a different take that starts from the point of view of plain Lie groupoids (which we allow to be infinite-dimensional) and slowly builds in … Continue reading Abelian differentiable gerbes – recap