Digitised experimental data for figures 8 and 9 of:
Asymptotic analysis of a kinematic model for coffee ring deposition
Oliver, J (04 May 2026)
Tue, 05 May 2026
16:00
L6

Characteristic polynomials of non-Hermitian random band matrices

Mariya Shcherbina
(School of Mathematics of University of Bristol and Institute for Low Temperature Physics, Kharkiv, Ukraine)
Abstract

We discuss the asymptotic local behavior of the second correlation functions of the characteristic polynomials of a certain class of Gaussian N X N non-Hermitian random band matrices with a bandwidth W. Given W,N → ∞, we show that this behavior near the point in the bulk of the spectrum exhibits the crossover at W ∼√N: it coincides with those for Ginibre ensemble for W ≫√N, and factorized as 1 ≪ W ≪√N. The behavior of the correlation function near the threshold (W/√N →C) will be also discussed.

Real-time CBCT reconstructions using Krylov solvers in repeated scanning procedures.
Hastings, F Islam, S Sabate Landman, M Hatamikia, S Schönlieb, C Biguri, A Physics in medicine and biology (30 Apr 2026)
Wed, 06 May 2026
13:00
C5

Differential Cohomology

Oscar Lewis
Abstract

Compactifying topological actions using only de Rham forms fails to capture torsion sectors encoded in integral cohomology. Differential cohomology remedies this by combining integral characteristic classes, differential-form curvatures, and holonomy data into a single framework. In the context of deriving SymTFTs from M-theory, such a refinement is crucial for capturing background gauge fields for discrete 1-form global symmetries in the physical theory. In this talk, we will review the construction of differential cohomology and, time permitting, show how a refined Kaluza-Klein compactification leads to background gauge fields that encode these higher-form symmetries.

Primitive asymptotics in $\phi^{4}$ vector theory
Balduf, P Thürigen, J Annales de l’Institut Henri Poincaré D Combinatorics Physics and their Interactions (15 Apr 2026)
TIGHTER BOUNDS FOR QUERY ANSWERING WITH GUARDED TGDS
Amarilli, A Benedikt, M Logical Methods in Computer Science volume 22 issue 2 8-44 (01 Jan 2026)
Free independence is not definable
Pi, J Curda, J Boulanger, W Harvey, E Li, Y Involve
Thu, 14 May 2026

12:00 - 13:00
C5

Isoperimetric planar tilings with unequal cells

Francesco Nobili
(University of Pisa)
Abstract

In this seminar, we consider an isoperimetric problem for planar tilings with possibly unequal repeating cells. We present general existence and regularity results, and we study the classification of planar isoperimetric double tilings, namely tilings with two repeating cells of minimal perimeter. In this case, we explicitly determine the associated energy profile and provide a complete description of the phase transitions. We also comment on possible extensions and discuss some open problems. This is based on joint work with M. Novaga and E. Paolini.

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