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Finite element method for a constant time delay subdiffusion equation with Riemann-Liouville fractional derivative
Weiping Bu, Chen Nie, Weizhi Liao
https://arxiv.org/abs/2509.13052

Finite element method for a constant time delay subdiffusion equation with Riemann-Liouville fractional derivative
This work considers to numerically solve a subdiffusion equation involving constant time delay $τ$ and Riemann-Liouville fractional derivative. First, a fully discrete finite element scheme is developed for the considered problem under the symmetric graded time mesh, where the Caputo fractional derivative is approximated via the L1 formula, while the Riemann-Liouville integral is discretized using the fractional right rectangular rule. Under the assumption that the exact solution has low regul…

Today, California Governor Gavin Newsom,
Oregon Governor Tina Kotek,
and Washington Governor Bob Ferguson
announced they will launch a new
⭐️"West Coast Health Alliance"
to ensure residents remain protected by science, not politics.
The alliance represents a unified regional response to the Trump Administration’s destruction of the U.S. CDC’s credibility and scientific integrity.
“President Trump’s mass firing of CDC doctors and scientists…

California, Oregon, and Washington to launch new West Coast Health Alliance to uphold scientific integrity in public health as Trump destroys CDC’s credibility | Governor of California
State of California

Reweighting metric measure spaces and Onsager-Machlup
Zachary Selk
https://arxiv.org/abs/2510.10591 https://arxiv.org/pdf/2510.10591

Reweighting metric measure spaces and Onsager-Machlup
Given a metric measure space $M:=(X,d,μ)$ the Onsager-Machlup (OM) functional is a real valued function that has been seen as a generalized notion of a probability density function. The effect of reweighting the measure on OM functionals has been studied, however analogous reweightings of the metric to the best of our knowledge remain open. In this short note, we prove a transformation formula for OM functionals on geodesic metric measure spaces under reweighting of both the metric and the mea…

Trans-Fe elements from Type Ia Supernovae. I. Heavy element nucleosynthesis during the formation of near-Chandrasekhar white dwarfs
Umberto Battino, James Keegans, Megan Allen, Friedrich R\"opke R\"opke, Falk Herwig, Andreas Best, Raphael Hirschi, Luciano Piersanti, Oscar Straniero, Stuart Sim, Claudia Travaglio, Pavel Denissenkov
https://

Trans-Fe elements from Type Ia Supernovae. I. Heavy element nucleosynthesis during the formation of near-Chandrasekhar white dwarfs
Type Ia supernovae (SNIa) are thermonuclear explosions of white dwarfs in binary systems. They are central to galactic chemical evolution and serve as standardizable candles in cosmology, yet their progenitors remain uncertain. In this work, we present a grid of five models detailing the evolution and nucleosynthesis of slowly merging carbon-oxygen white dwarfs approaching the Chandrasekhar mass. These models test a variety of physics input settings, including accretion rates, nuclear reaction …