Results 11 to 20 of about 266 (68)
Noûs, Volume 57, Issue 4, Page 763-783, December 2023., 2023 Abstract This paper argues that all of the standard theories about the divisions of space and time can benefit from, and may need to rely on, parsimony considerations. More specifically, whether spacetime is discrete, gunky or pointy, there are wildly unparsimonious rivals to standard accounts that need to be resisted by proponents of those accounts ...
Daniel Nolan
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Tensor stable moduli stacks and refined representations of quivers
Journal of the London Mathematical Society, Volume 108, Issue 6, Page 2085-2114, December 2023., 2023 Abstract In this paper, we look at the problem of modular realisations of derived equivalences, and more generally, the problem of recovering a Deligne–Mumford stack X$\mathbb {X}$ and a bundle T$\mathcal {T}$ on it, via some moduli problem (on X$\mathbb {X}$ or A=EndXT$A = \operatorname{End}_{\mathbb {X}} \mathcal {T}$). The key issue is, how does one
Tarig Abdelgadir, Daniel Chan
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On singular generalizations of the Singer–Hopf conjecture
Mathematische Nachrichten, Volume 296, Issue 11, Page 5232-5241, November 2023., 2023 Abstract The Singer–Hopf conjecture predicts the sign of the topological Euler characteristic of a closed aspherical manifold. In this note, we propose singular generalizations of the Singer–Hopf conjecture, formulated in terms of the Euler–Mather characteristic, intersection homology Euler characteristic and, resp., virtual Euler characteristic of a ...
Laurenţiu Maxim
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Linking Stream Chemistry to Subsurface Redox Architecture
Water Resources Research, Volume 59, Issue 5, May 2023., 2023 Abstract As drinking‐water scarcity grows worldwide, we need to improve predictions of the quantity and quality of our water resources. An overarching problem for model improvement is that we do not know the geological structure of aquifers in sufficient detail.
Andrew R. Shaughnessy +5 more
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Hecke algebras and the Schlichting completion for discrete quantum groups
Journal of the London Mathematical Society, Volume 107, Issue 3, Page 843-885, March 2023., 2023 Abstract We introduce Hecke algebras associated to discrete quantum groups with commensurated quantum subgroups. We study their modular properties and the associated Hecke operators. In order to investigate their analytic properties we adapt the construction of the Schlichting completion to the quantum setting, thus obtaining locally compact quantum ...
Adam Skalski +2 more
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A singular Coxeter presentation
Proceedings of the London Mathematical Society, Volume 126, Issue 3, Page 923-996, March 2023., 2023 Abstract We enlarge a Coxeter group into a category, with one object for each finite parabolic subgroup, encoding the combinatorics of double cosets. This category, the singular Coxeter monoid, is connected to the geometry of partial flag varieties. Our main result is a presentation of this category by generators and relations.
Ben Elias, Hankyung Ko
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Conservation Science and Practice, Volume 5, Issue 2, February 2023., 2023 We developed a simulation to compare acoustic and visual surveys to inform North Atlantic right whale risk mitigation. We expanded upon an established whale movement model by incorporating cues for visual and acoustic detection within dynamic management zones in the Gulf of Saint Lawrence, Canada and survey transits with representative platform ...
Valentina Ceballos +2 more
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Assembly of constructible factorization algebras
Journal of Topology, Volume 19, Issue 1, March 2026.Abstract We provide a toolbox of extension, gluing, and assembly techniques for factorization algebras. Using these tools, we fill various gaps in the literature on factorization algebras on stratified manifolds, the main one being that constructible factorization algebras form a sheaf of symmetric monoidal ∞$\infty$‐categories.
Eilind Karlsson +2 more
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Environmental drivers of scale morphology in a Canary Island lizard across 3700 m of elevation
Journal of Zoology, Volume 327, Issue 4, Page 398-409, December 2025.Gallotia galloti scale traits are driven by climate and human pressures. High dorsal density correlates with hotter, dryer environments and larger scales with higher sun exposure, while ventral scale variation was associated with isothermality and human influences. These changes highlight morphological responses to environmental conditions.
K. Kelly +5 more
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A note on the cohomology of moduli spaces of local shtukas
Bulletin of the London Mathematical Society, Volume 57, Issue 12, Page 3709-3729, December 2025.Abstract We study localized versions of spectral action of Fargues–Scholze, using methods from higher algebra. As our main motivation and application, we deduce a formula for the cohomology of moduli spaces of local shtukas under certain genericity assumptions, and discuss its relation with the Kottwitz conjecture.
David Hansen, Christian Johansson
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