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@arXiv_mathAC_bot@mastoxiv.page
2025-10-14 09:16:08

The Brian\c{c}on-Skoda theorem for pseudo-rational and Du~Bois singularities
Linquan Ma, Peter M. McDonald, Rebecca R. G., Karl Schwede
arxiv.org/abs/2510.11540

The Briançon-Skoda theorem for pseudo-rational and Du~Bois singularities
Suppose $J = (f_1, \dots, f_n)$ is an $n$-generated ideal in a ring $R$. We prove a general Briançon-Skoda-type containment relating the integral closure of powers of $J$ with ordinary powers of $J$. We prove that our result implies the full standard Briançon-Skoda containment $\overline{J^{n+k-1}} \subseteq J^k$ for pseudo-rational singularities (for instance regular rings), and even for the weaker condition of birational derived splinters. Our methods also yield the containment $\overline{J…

@arXiv_condmatstatmech_bot@mastoxiv.page
2025-09-15 08:49:31

Universal Driven Critical Dynamics near the Boundary
Yu-Rong Shu, Shuai Yin
arxiv.org/abs/2509.10049 arxiv.org/pdf/2509.10049

Universal Driven Critical Dynamics near the Boundary
The celebrated Kibble-Zurek mechanism (KZM) describes the scaling of physical quantities when external parameters sweep through a critical point. Boundaries are ubiquitous in real systems, and critical behaviors near the boundary have attracted extensive research. Different boundary universality classes, including ordinary, special, extraordinary, and surface transitions, have been identified. However, the driven critical dynamics near boundaries remains unexplored. Here, we systematically inve…

@arXiv_mathNA_bot@mastoxiv.page
2025-09-12 09:26:49

Second-order Optimally Stable IMEX (pseudo-)staggered Galerkin discretization: application to lava flow modeling
Federico Gatti, Giuseppe Orlando
arxiv.org/abs/2509.09460

Second-order Optimally Stable IMEX (pseudo-)staggered Galerkin discretization: application to lava flow modeling
We present second-order optimally stable Implicit-Explicit (IMEX) Runge-Kutta (RK) schemes with application to a modified set of shallow water equations that can be used to model the dynamics of lava flows. The schemes are optimally stable in the sense that they satisfy, at the space-time discretization level, a condition analogous to the \texttt{L}-stability of Runge-Kutta methods for ordinary differential equations. A novel (pseudo-)staggered Galerkin scheme is introduced, which can be interp…

@Dragofix@veganism.social
2025-08-08 02:16:06

Restoration brings back fresh water, wildlife to degraded pšramos in Ecuador news.mongabay.com/2025/08/rest

Restoration brings back fresh water, wildlife to degraded páramos in Ecuador
When the sheep were removed, the páramo — high-altitude ecosystems in the Andes — started to heal. Without their waste, water quality improved. Without their hooves compacting the soil, plants began to grow again. Before long, shy white-tailed deer arrived, drawn by the grasses and shrubs for food and shelter. Not long after, pumas reappeared. […]

@unchartedworlds@scicomm.xyz
2025-08-13 14:50:16
Content warning: interview with Jeremy Corbyn

Mostly what I'd expect him to say.
This line stuck out to me:
"Looking at the Labour Party now, it’s as if MPs are afraid of the people they are meant to represent"
That rings true to me. Reminds me of the recent arrests for challenging the proscription of Palestine Action. Ordinary people explicitly disagreeing with the government, oh no! Can't be allowed!
And I think part of what a lot of people like about Corbyn is he _doesn't_ give that vibe. He behaves as though ordinary people are reasonable, resourceful, able to collaborate on solutions.
#UKPol #JeremyCorbyn #YourParty #LabourParty

@arXiv_nuclth_bot@mastoxiv.page
2025-08-11 08:49:00

Realistic shell model for ordinary muon capture of sd-shell nuclei
S. L. Lyu, G. De Gregorio, T. Fukui, N. Itaco, L. Coraggio
arxiv.org/abs/2508.06221

Realistic shell model for ordinary muon capture of sd-shell nuclei
We report about a study of the ordinary muon capture in nuclei belonging to the sd shell, an electroweak process that occurs with exchange momenta far larger than ordinary beta decays (approximately 100 MeV). Such a characteristic places this transition in an energy range that is consistent with the neutrinoless double-beta decay, and represents an interesting test for nuclear models to support their predictions of the nuclear matrix elements for such an unobserved process. For the first time, …

@primonatura@mstdn.social
2025-08-23 10:00:41

"Climate change amplifies extreme rains more than light precipitation, study finds"
#Climate #ClimateChange #Weather

Climate change amplifies extreme rains more than light precipitation, study finds
Climate change enhances extreme rains more than the ordinary drizzle. New research shows that frontal rain increases the most, and illustrates why extreme rains caused by other phenomena are not equally affected.

@lightweight@mastodon.nzoss.nz
2025-09-01 20:40:02
Content warning: NZPol Neoliberalism Corporate Hegemony

Listening to Chippy on RNZ, it seems that our having signed up for the #CPTPPA agreement has tied our hands regarding blocking 'golden passports' for wealthy foreigners wanting to 'buy into' Aotearoa, like Thiel did. Wonder what benefits ordinary NZers get from our compromising our sovereignty, ceding it to multinational corporations? I'd vote the heck out of a party that pr…

@arXiv_mathNT_bot@mastoxiv.page
2025-08-06 09:44:00

Isogeny graphs of abelian varieties and singular ideals in orders
Sarah Arpin, Stefano Marseglia, Caleb Springer
arxiv.org/abs/2508.03570 a…

Isogeny graphs of abelian varieties and singular ideals in orders
Famously, Kohel proved that isogeny graphs of ordinary elliptic curves are beautifully structured objects, now called volcanos. We prove graph structural theorems for abelian varieties of any dimension with commutative endomorphism ring and containing a fixed locally Bass order, leveraging an ideal-theoretic perspective on isogeny graphs. This generalizes previous results, which relied on restrictive additional assumptions, such as maximal real multiplication, ordinary, and absolutely simple (B…

@Dragofix@veganism.social
2025-08-25 22:12:01

Climate change amplifies extreme rains more than light precipitation, study finds #environment

Climate change amplifies extreme rains more than light precipitation, study finds
Climate change enhances extreme rains more than the ordinary drizzle. New research shows that frontal rain increases the most, and illustrates why extreme rains caused by other phenomena are not equally affected.