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Computer Science Preprint PDF DOI

Computing Equilibrium beyond Unilateral Deviation

Mingyang Liu, Gabriele Farina, Asuman Ozdaglar · 2026

Most familiar equilibrium concepts, such as Nash and correlated equilibrium, guarantee only that no single player can improve their utility by deviating unilaterally. They offer no guarantees against …

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Physics Preprint PDF DOI

Intrinsic anomalous thermal hall effect as a signature of quantum metric in d-wave altermagnets

Rishi G. Gopalakrishnan, Srimayi Korrapati, Sumanta Tewari · 2026

We investigate the intrinsic anomalous thermal Hall effect in d-wave altermagnets, where a transverse heat current is generated by a longitudinal temperature gradient in the absence of a magnetic fiel…

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Mathematics Preprint PDF DOI

Jump It\^o-type formula with arbitrary regularity

Nannan Li, Xing Gao · 2026

We establish an It\^o-type formula for finite $p$-variation paths with jumps for arbitrary $p\geq 1$. The formula is stated in a fully pathwise form and separates the reduced rough integral from expli…

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Mathematics Preprint PDF DOI

Quantitative homogenization of the maximal action of curves in a Brownian potential

Felix Otto, Matteo Palmieri · 2026

Motivated by an optimal-matching problem (Leighton-Shor) and the random-field Ising model (Aizenman-Wehr, Ding-Wirth), we consider a variational problem for graphs in $1+1$ dimension maximizing an act…

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Mathematics Preprint PDF DOI

Stability and existence of relativistic plasma--vacuum interfaces

Paolo Secchi, Yuri Trakhinin, Tao Wang · 2026

We consider the free boundary problem for relativistic plasma--vacuum interfaces in two and three spatial dimensions. The plasma flow is governed by the equations of ideal relativistic magnetohydrodyn…

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Physics Preprint PDF DOI

On the simplicity of de Sitter correlators

Chandramouli Chowdhury, Song He, Yong-Xiang Su, Dongyu Yang · 2026

Motivated by recent evidence that equal-time correlators can be simpler than the corresponding wavefunction coefficients, we study de Sitter correlators in conformally coupled $\phi^3$ theory directly…

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Physics Preprint PDF DOI

The Super Virasoro Minimal String from 3d Supergravity

Lorenz Eberhardt · 2026

The super Virasoro minimal string is defined by coupling spacelike and timelike super Liouville theories on the worldsheet. There are four different theories 0A$^\pm$ and 0B$^\pm$ depending on discret…

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Physics Preprint PDF DOI

Quantum channels preserving sigma-additivity and Ulam measurable cardinals

S. V. Dzhenzher · 2026

This paper investigates the interplay between the properties of quantum states on the Hilbert space \(\ell_2(\kappa)\) and the set-theoretic nature of the cardinal $\kappa$. We focus on the existenc…

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Physics Preprint PDF DOI

Nonlocal Cooper pairs in finite topological superconductors and their relation to Majorana nonlocality

Hiroto Mizoguchi, Yutaro Nagae, Yasuhiro Asano, Satoshi Ikegaya · 2026

We identify two fundamental properties of the Gor'kov Green's function of finite one-dimensional topological superconductors. In the low-frequency (low-energy) regime, the normal and anomalous Green's…

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Physics Preprint PDF DOI

Nonlocal correlations for bosonic fields in black hole quantum atmosphere

Adam Z. Kaczmarek, Johann Gil, Zygmunt Bak, Ewa A. Drzazga-Szczesniak, Dominik Szczesniak · 2026

Recent theoretical studies propose that Hawking radiation may not emerge strictly at the event horizon but rather from the spatially extended region surrounding a black hole, commonly referred to as t…

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Mathematics Preprint PDF DOI

A rational model for the fiberwise THH transfer II: $A_\infty$-algebras

Florian Naef, Robin Stoll · 2026

In Part I, we proved that a rational model for the fiberwise THH transfer of a map $f$ of fibrations over a base space is given by the Hochschild homology transfer of a cdga model of $f$. In this pape…

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Computer Science Preprint PDF DOI

Densification Converses for Walker Constellations With Explicit Constants and Reuse Scaling Laws

Ali Khalesi, Francois Baccelli · 2026

We establish densification converses for Walker LEO constellations under nearest-visible association in the full-frequency-reuse setting. Performance is evaluated under the invariant (stationary) meas…

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Mathematics Preprint PDF DOI

When Does Dynamic Preconditioning Preserve the Polyak-Ruppert CLT? A Stabilization Threshold

Sunyoung An, Xiaoming Huo · 2026

Polyak-Ruppert averaging yields an asymptotically normal estimator with sandwich covariance $H^{-1}SH^{-1}$, the foundation of online inference. When the gradient step is preconditioned by a data-driv…

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Mathematics Preprint PDF DOI

Color--Speed Separation for Mixed Random Operators in Multispeed Stochastic Klein--Gordon Systems

Guangqian Zhao · 2026

We study a two-component fractional stochastic Klein--Gordon system on $\mathbb T^3$, driven by independent space-time white noises and with distinct high-frequency propagation speeds. The main object…

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Mathematics Preprint PDF DOI

The Smallest Invariant Factor of Elliptic Curves, and Coincidences

Alexander Milner, Jack Shotton · 2026

For an elliptic curve E over Q and a natural number j, Cojocaru has shown that there is an explicit constant C_E,j giving (under GRH) the density of primes p of good reduction such that the smallest i…

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Mathematics Preprint PDF DOI

Magnetic uncertainty in variable geometry

Luca Fanelli, Yilin Song, Ying Wang, Jiqiang Zheng, Ruihan Zhou · 2026

In this paper, we study Hardy-type uncertainty principles and unique continuation properties for linear covariant Schrodinger equations with variable coefficients in the presence of bounded electric a…

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Mathematics Preprint PDF DOI

The Evans function as a lower bound on the spectral distance function

George Bayliss, Jared C. Bronski · 2026

The Evans function is an analytic function that encodes information about the intersection of certain subspaces in ODE boundary value problems. As such it is a useful tool for computing the spectrum o…

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Sociology & Anthropology Preprint PDF DOI

Cycle holonomy induces higher-order constraints and controls remote synchronization transitions via twisted Laplacian spectra

Lluis Torres-Hugas, Jordi Duch, Sergio Gomez, Alex Arenas · 2026

Higher-order interaction networks are typically modeled using hypergraphs or simplicial complexes, where interactions explicitly involve more than two nodes. Here we demonstrate that effective higher-…

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Physics Preprint PDF DOI

Quantum transport in gapped graphene under strain and laser--electrostatic barriers

Hasna Chnafa, Clarence Cortes, David Laroze, Ahmed Jellal · 2026

Electron transport in graphene under a laser-modulated barrier is studied in the presence of an energy gap, a scalar potential, and a uniaxial zigzag strain. The transfer-matrix approach is used with …

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Mathematics Preprint PDF DOI

Algebraic numbers and Fourier analysis: Salem's third problem

Khoa D. Nguyen · 2026

In 1963, Rapha\"el Salem concluded his highly influential book ``Algebraic Numbers and Fourier Analysis'' with a list of four unsolved problems. The first two problems remain wide open while the last …

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