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Covariant field with unique mass and spin 3/2
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The memory of $\omega$-regular and BC($\Sigma_2^0$) objectives
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Klein--Gordon and Dirac Oscillators with an Apparent Mass Induced by the Momentum-Space Dual of the Fock--Lorentz Transformations
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Scorecard: England vs India, second T20 international, Bristol
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Ahoy, DECmate II the little PDP-8 that could
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A posteriori existence for the Keller-Segel model via a finite volume - finite element scheme
arXiv:2509.17710v2 Announce Type: replace Abstract: We derive two forms of conditional a posteriori error estimates for a finite volume scheme approximating the parabolic-elliptic Keller-Segel system. The estimates control the error in the $L^\infty(0,T, L^2(\Omega))$- and $L^2(0,T;H^1(\Omega))$-norm and exhibit linear convergence in the mesh size, as observed in numerical experiments. Crucially, we show that, as long as the condition of the error estimate is satisfied, a weak solution exists.
Cloning a Sennheiser BA2015 battery pack
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