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Pinwheels in symplectic rational and ruled surfaces and non‐squeezing of rational homology balls

open access: yesJournal of Topology, Volume 19, Issue 3, September 2026.
Abstract We use almost toric fibrations and the symplectic rational blow‐up to determine when certain Lagrangian pinwheels, which we call liminal, embed in symplectic rational and ruled surfaces. The case of L2,1$L_{2,1}$‐pinwheels, namely Lagrangian RP2s$\mathbb {R}P^2{\rm s}$, answers a question of Kronheimer in the negative, exhibiting a symplectic ...
Nikolas Adaloglou, Johannes Hauber
wiley   +1 more source

Sample changers for direct geometry neutron chopper spectrometers. [PDF]

open access: yesSci Rep
Stone MB   +15 more
europepmc   +1 more source

EUS-Guided Gastroenterostomy for Malignant Gastric Outlet Obstruction: Morphological Classification to Prevent Stent Misdeployment. [PDF]

open access: yesDig Endosc
Kuo YT   +15 more
europepmc   +1 more source

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