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Mathematics Preprint PDF DOI

Renormalized Solutions for a Class of Nonlinear Parabolic Equation with a Lower Order Term and Variable Exponents

Chunjin Li, Shijun Li, Shaopeng Xu · 2026

We consider a class of nonlinear parabolic equations \[ \dfrac{\partial}{\partial t} b(u)-\nabla \cdot (A(x,t,u,\nabla u))+H(x,t,\nabla u)=f , \] where $H$ is a nonlinear lower order term sati…

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Mathematics Preprint PDF DOI

Barriers, Barenblatt solutions and regularity of soda can domains for the heat equation and nonlinear $p$-parabolic equations

Anders Bjorn, Jana Bjorn · 2026

In this paper we study when the origin $(0,0)$ is a regular (or irregular) boundary point for the so-called soda can domains of the type \[ \Theta_{l,\theta}:= \{(x,t) \in \mathbf{R}^{n+1}: 0<-t < \th…

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Computer Science Preprint PDF DOI

SQuadGen: Generating Simple Quad Layouts via Chart Distance Fields

Youkang Kong, Yang Liu, Yue Dong, Xin Tong, Heung-Yeung Shum · 2026

3D shapes from scanning, reconstruction, or AI-generated content often lack simple quad mesh layouts -- critical for efficient editing and modeling. Existing quad-remeshing techniques typically produc…

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Physics Preprint PDF DOI

High-key-rate Fully-Passive Quantum Access Network with Thermal Source

H.W. Yin, B.D. Zhu, H. Peng, T. Wang, X.Q. Jiang, Y.K. Xu, G.H. Zeng · 2026

To accommodate classical communication systems with progressively increasing transmission rates, quantum access networks (QAN) have undergone systematic and protocol-level optimizations in recent year…

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AI & Data Science Preprint PDF DOI

Learning Rate Engineering: From Coarse Single Parameter to Layered Evolution

Ming-Hong Yao, Di Wang, Jian Cui, Jin-Yan Chen, Zi-Hao Cui, Fa Wang, Chen Wei, Qiu-Ye Yu · 2026

Learning rate scheduling has evolved from the single global fixed rate of early SGD to sophisticated layer-wise adaptive strategies. We systematize this evolution into five generations: (Gen1) global …

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Physics Preprint PDF DOI

Astrocytes: Arnol'd Tongues Generalization in Dynamical Systems' Parameter Plane

Gonzalo Marcelo Ramirez-Avila, S. Leo Kingston, Marek Balcerzak, Jerome Daquin, Timoteo Carletti, Tomasz Kapitaniak · 2026

We discovered generalized structures, named astrocytes due to their shape, that constitute a defined region characterizing regular behavior within the parameter plane (PP) of dynamical systems (DSs). …

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Mathematics Preprint PDF DOI

Beyond Linear Additive and Hill Functions: A General Logistic Reformulation of Delay-Coupled Gene Regulatory Networks with Equilibrium Analysis, Hopf Bifurcation, and Lipschitz Stability

Ismail Belgacem · 2026

Hill functions, dominant in gene regulatory network modeling, carry fundamental limitations: at non-integer cooperativity exponents, routine when fitting dose-response data, derivatives diverge at the…

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AI & Data Science Preprint PDF DOI

CARhy: Comprehensive Analyses of Circadian Rhythms in Transcriptomic Experiments with Multiple Conditions

Weiyi Huang, Jerome S. Menet, Samiran Sinha · 2026

Circadian rhythms are endogenous oscillations that regulate various physiological processes and their disruption has been linked to many diseases, making it important to determine how gene-expression …

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Mathematics Preprint PDF DOI

A stellated tetrahedron that is probably not Rupert

Tony Zeng · 2026

A convex polyhedron is Rupert if a hole can be cut into it (making its genus $1$) such that an identical copy of the polyhedron can pass through the hole. Resolving a conjecture of Jerrard-Wetzel-Yuan…

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Mathematics Preprint PDF DOI

Geometric structure of singular free boundary points for the logarithmic obstacle problem

Lili Du, Xu Tang, Yi Zhou · 2026

In the previous work [Interfaces Free Bound., 19, 351--369, 2017], de Queiroz and Shahgholian established the optimal $C^{1,\log}_{\mathrm{loc}}$ regularity of solutions for the obstacle problem with …

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Mathematics Preprint PDF DOI

On a conjecture of distance spectral extremal problems

Hongzhang Chen, Jianxi Li, Yongtao Li · 2026

Brualdi and Hoffman proposed a well-known problem of determining the graph with maximum adjacency spectral radius among all graphs with given size $m$. Early work by Friedland and Stanley addressed so…

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Biology & Life Sciences Preprint PDF DOI

How is gene-regulatory evolution affected by cell-to-cell variability?

Leonardo Ivan Estrella Dzib, James Holehouse · 2026

The evolutionary origins of structural features in reconstructed gene-regulatory networks (GRNs) remain poorly understood, especially given the random aspects of gene expression. Here, we extend a cla…

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Biology & Life Sciences Preprint PDF DOI

Robust Clustering Analysis of Genes Related to Age-related Macular Degeneration using RNA-Seq

Brayan Gutierrez, Rinki Ratnapriya, Arko Barman · 2026

Identifying genes associated with diseases is crucial to understanding disease mechanisms and developing therapies. However, identification of individual genes associated with a disease often needs to…

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Mathematics Preprint PDF DOI

A curved three-point pattern problem for fractal sets on the real line

Surjeet Singh Choudhary, Chong-Wei Liang, Chun-Yen Shen · 2026

We study the occurrence of curved three-point configurations in fractal subsets of the real line. We prove that if \(E \subset [0,1]\) is a compact set with sufficiently large Hausdorff dimension, the…

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Economics & Finance Preprint PDF DOI

Sources of Inequality at Birth: The Interplay Between Genes and Parental Socioeconomic Status

Pietro Biroli, Nicolau Martin-Bassols, Andries T. Marees, Hans van Kippersluis, Cornelius A. Rietveld, Pia Arce, Kevin Thom, Stephanie von Hinke, Jeremy Vollen, Titus Galama · 2026

The start of a human's life can be characterized by two lotteries: that of your genes (nature) and the family you were born into (nurture). These set in motion a trajectory, from birth onward, in heal…

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AI & Data Science Preprint PDF DOI

From World-Gen to Quest-Line: A Dependency-Driven Prompt Pipeline for Coherent RPG Generation

Dominik Borawski, Marta Szulc, Robert Chudy, Ma{l}gorzata Giedrowicz, Piotr Mironowicz · 2026

Large Language Models (LLMs) have shown strong potential for narrative generation, but their use in complex, multi-layered role-playing game (RPG) worlds is still limited by issues of coherence, contr…

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Mathematics Preprint PDF DOI

Immersions of $C_2$-projective spaces via $K\mathbb{R}$-theory

Manyi Guo, Jackson Morris, Alex Waugh, Albert Jinghui Yang · 2026

We compute the Atiyah Real $K$-theory of $C_2$-equivariant projective spaces and construct immersions of such spaces into multiples of the regular representation. These computations are made tractable…

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Biology & Life Sciences Preprint PDF DOI

T-cell repertoire response in individuals with post-acute sequelae of COVID-19

Zachary Montague, Rhea M Grover, Andrew Baumgartner, Assya Trofimov, Jennifer Hadlock, Armita Nourmohammad · 2026

T-cells are central to SARS-CoV-2 clearance and immunological memory, yet their contribution to the persistence of post-acute sequelae of COVID-19 (PASC) remains poorly understood. The immunological f…

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Biology & Life Sciences Preprint PDF DOI

Learning biophysical models of gene regulation with probability flow matching

Suryanarayana Maddu, Victor Chardes, Michael J. Shelley · 2026

Cellular differentiation is governed by gene regulatory networks, the high-dimensional stochastic biochemical systems that determine the transcriptional landscape and mediate cellular responses to sig…

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Biology & Life Sciences Preprint PDF DOI

Quantifying the effect of phenotype on clustering behaviour in melanoma: from monoculture to co-culture

Nathan Schofield, Richard White, Ruth Baker, Helen Byrne · 2026

Melanoma is an aggressive form of skin cancer. Survival rates are excellent if it is detected early but fall markedly if it metastasises. A key step in early tumour progression is the formation of cel…

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