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Physics Preprint PDF DOI

Holographic realization of higher-spin Carrollian free fields

Ethan D'Arcy, Arnaud Delfante, Stefan Fredenhagen · 2026

We provide a holographic bulk realization of Carrollian free-field structures arising in three-dimensional asymptotically flat (higher-spin) gravity. We construct a class of boundary conditions that g…

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Physics Preprint PDF DOI

On matrix Lax representations for (1+1)-dimensional evolutionary differential-difference equations

Sergei Igonin · 2026

Differential-difference matrix Lax representations (Lax pairs), gauge transformations, and discrete Miura-type transformations (MTs) belong to the main tools in the theory of (nonlinear) integrable di…

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Computer Science Preprint PDF DOI

Optimization of Constrained Quasiconformal Mapping for Origami Design

Ka Ho Lai, Hei Tung Tsang, Gary P. T. Choi, Lok Ming Lui · 2026

Origami structures, particularly Miura-ori patterns, offer unique capabilities for surface approximation and deployable designs. In this study, a constrained mapping optimization algorithm is designed…

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Physics Preprint PDF DOI

Disk instability model incorporating a variable inner disk radius in SS Cyg and U Gem

Mariko Kimura, Osaki Yoji · 2026

Previous theoretical studies indicate that the inner disk in dwarf novae evaporates into a high-temperature, optically thin, and geometrically thick accretion flow during quiescence, with the inner ed…

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Biology & Life Sciences Preprint PDF DOI

Mathematical Models of Evolution and Replicator Systems Dynamics. Chapter 1: Introduction to Replicator Systems

A.S. Bratus, S. Drozhzhin, T. Yakushkina · 2026

This chapter is an overview of foundational results in the mathematical theory of replicator systems. Its primary aim is to provide a unified framework for the mathematical formalisation of evolutiona…

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Mathematics Preprint PDF DOI

A Criterion for Phantomness of dg-categories

Keiho Matsumoto · 2026

We study the question of whether the vanishing of additive invariants characterizes phantomness for smooth proper dg categories admitting geometric realizations. More precisely, let $X$ be a smooth pr…

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Mathematics Preprint PDF DOI

Root lattices over totally real fields

Ryotaro Sakamoto, Miyu Suzuki, Hiroyoshi Tamori · 2026

A root lattice is a finite rank $\mathbb{Z}$-lattice generated by elements $x$ satisfying $x\cdot x=2$. It is well-known that the root lattices have an $ADE$ classification and they play a prominent r…

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Mathematics Preprint PDF DOI

Dynamics of Kahan-Hirota-Kimura maps with rational invariant fibrations

Victor Manosa, Chara Pantazi · 2026

We present a simple method to study the dynamics of planar Kahan-Hirota-Kimura (KHK) maps preserving rational fibrations. Using this approach, we show that integrable KHK maps may exhibit complex dyna…

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Engineering Preprint PDF DOI

From Folding Mechanics to Robotic Function: A Unified Modeling Framework for Compliant Origami

Bohan Zhang, Bo Wang, Huajiang Ouyang, Zhigang Wu, Haohao Bi, Jiawei Xu, Mingchao Liu, Weicheng Huang · 2026

Origami inspired architectures offer a powerful route toward lightweight, reconfigurable, and programmable robotic systems. Yet, a unified mechanics framework capable of seamlessly bridging rigid fold…

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Mathematics Preprint PDF DOI

Noncommutative Wilczynski Invariants, and Modular Differential Equations

Amir Jafari · 2026

We develop an explicit invariant calculus for monic $n$-th order linear differential operators in the Ore algebra of a (possibly noncommutative) differential algebra $(K,D)$: \[ L \;=\; \sum_{i=0}^n \…

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Physics Preprint PDF DOI

Validation of Product Nuclide Activity Calculations in IAEA Charged-Particle Cross Section Database for Beam Monitor Reactions

Mustafa Rabus, Iskender Atilla Reyhancan · 2026

For the 34 monitor reactions included in the IAEA Beam Monitor Reactions (BMR) 2017 dataset and the 22 reactions listed in the IAEA BMR 2007 dataset, product radionuclide activities were calculated us…

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Mathematics Preprint PDF DOI

Duflo-Serganova fumctors and Brundan-Goodwin's parabolic inductions

Shunsuke Hirota · 2026

Duflo--Serganova functors play an important role in the representation theory of Lie superalgebras. While it is desirable to understand the images of modules under DS, little is known beyond finite-di…

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Physics Preprint PDF DOI

Size-Dependent Properties of Miura-ori Tessellations

Chaewon Baek, Tomohiro Tachi, Jinkyu Yang, Hiromi Yasuda · 2026

We investigate the size-dependent behavior of Miura-ori-based origami tessellations by changing the number of origami unit cells. For large tessellations, the Miura-ori sheet generally exhibits a nega…

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Mathematics Preprint PDF DOI

Automorphisms of Kimura Hadamard Matrices

Santiago Barrera Acevedo, Melissa Lee · 2026

We investigate the structure of the automorphism groups of Kimura Hadamard matrices (KHMs) constructed from dihedral groups. We identify several different types of automorphisms, and show that the aut…

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Physics Preprint PDF DOI

CP violation in H^\pm \to W^\pm Z: A physical approach for the 2HDM

Wafaa Khater, Odd Magne Ogreid, Per Osland, Margarida Nesbitt Rebelo · 2026

We investigate CP violation in the process H^\pm \to W^\pm Z within the framework of the two-Higgs-Doublet model (2HDM). Amplitudes are expressed transparently in terms of physical couplings. Our anal…

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Mathematics Preprint PDF DOI

Structures in topological recursion relations

Felix Janda, Xin Wang · 2026

In this paper, we study the basic structures of degree-$g$ topological recursion relations on the moduli space of curves $\overline{\mathcal{M}}_{g,n}$: (i) The coefficient of the bouquet class on $\o…

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Physics Preprint PDF DOI

Bihamiltonian tests for integrable systems associated to rank-$1$ F-CohFTs

Alexandr Buryak, Jianghao Xu, Di Yang · 2026

Double ramification (DR) hierarchies associated to rank-$1$ F-CohFTs are important integrable perturbations of the Riemann--Hopf hierarchy. In this paper, we perform bihamiltonian tests for these DR h…

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Physics Preprint PDF DOI

Discretization of the Mikhailov model

Song-lin Zhao, Xiao-gang Mu, Da-jun Zhang · 2026

In this paper the Mikhailov model is discretized by means of the Cauchy matrix approach. A pair of discrete Miura transformations are constructed. The discrete Mikhailov model is a coupled system, in …

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Biology & Life Sciences Preprint PDF DOI

Absorption and fixation times for evolutionary processes on graphs

Fernando Alcalde Cuesta, Gustavo Guerberoff, Alvaro Lozano Rojo · 2026

In this paper, we study the absorption and fixation times for evolutionary processes on graphs, under different updating rules. While in Moran process a single neighbour is randomly chosen to be repla…

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Mathematics Preprint PDF DOI

Sharp nonuniqueness for the forced 2D Navier-Stokes and dissipative SQG equations

Francisco Mengual, Marcos Solera · 2026

We prove a sharp nonuniqueness result for the forced generalized SQG equation. First, this yields nonunique $\dot{H}^s$- energy solutions below the Miura-Ju class. In particular, this shows that the s…

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