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🔍 xiaochen wang 📂 Mathematics
Showing 6768 results for "xiaochen wang" in Mathematics
Mathematics Preprint PDF DOI

Weakly, sufficiently or strongly localized operators on the Fock space in \mathh C^n

David Bekolle, Solange B. Difo, Hugues O. Defo, Edgar L. Tchoundja · 2026

We study properties of the following four classes of operators on the Fock space in $\mathbb C^n:$ 1) weakly localized operators; 2) sufficiently localized operators in the sense of Xia and Zheng; 3) …

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Mathematics Preprint PDF DOI

Two-Valued Groups, Chazy Equation, Dubrovin-Frobenius Structures, and QYBE

Victor Buchstaber, Mikhail Kornev, Vladimir Rubtsov · 2026

We show that the associativity condition of the universal symmetric 2-algebraic 2-valued group defined by the Buchstaber polynomial admits several mutually equivalent interpretations from the viewpoin…

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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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Mathematics Preprint PDF DOI

Reachability-Based Design Optimization for Aircraft Maneuverability

Steven Nguyen, Nicholas Orndorff, Jorge Cortes, Boris Kramer · 2026

This paper presents a method for incorporating control analysis into design optimization for highly-maneuverable aircraft. By studying reachable sets for aircraft dynamics, we ensure that the optimize…

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Mathematics Preprint PDF DOI

Positive mass theorem for initial data sets with arbitrary ends

Tin-Yau Tsang · 2026

We showed a positive energy theorem for asymptotically flat initial data sets with the concept of spectral PSC by He-Shi-Yu, Bi-Hao-He-Shi-Zhu and Brendle-Wang. Then, we proved a quantitative shieldin…

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Mathematics Preprint PDF DOI

Classification of Steady Gradient Ricci-Yang-Mills Solitons on Surfaces

Michael Womack · 2026

We construct string backgrounds in dimension 2 which connect the Hamilton cigar to the round sphere. Specifically, we construct a 1-parameter family of rotationally symmetric steady gradient Ricci-Yan…

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Mathematics Preprint PDF DOI

The Hyperboloidal and Spacetime Positive Mass Theorem in All Dimensions

Sven Hirsch, Marcus Khuri, Martin Lesourd, Yiyue Zhang · 2026

Using the recent work of Brendle--Wang on the Riemannian positive mass theorem, we prove the spacetime positive mass theorem for asymptotically flat and asymptotically hyperboloidal initial data sets …

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Mathematics Preprint PDF DOI

Super-Chevalley Restriction and Relative Lie Algebra Cohomology over the 2|3 Algebra

Chi-Ming Chang · 2026

Let $A:=\mathbb{C}[z_+,z_-]\otimes \Lambda(\theta_1,\theta_2,\theta_3)$, with $z_\pm$ even and $\theta_1,\theta_2,\theta_3$ odd. For a reductive Lie algebra $\mathfrak g$, let $\mathfrak g[A]:=\mathfr…

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Mathematics Preprint PDF DOI

Gradient regularity for viscosity solutions to quasilinear parabolic equations with mixed singular-degenerate structure

Junior da Silva Bessa, Joao Vitor da Silva, Ginaldo de Santana Sa · 2026

We establish regularity results for viscosity solutions to a class of quasilinear parabolic equations exhibiting nonhomogeneous degeneracy or singularity (a double phase regime) of the form \[ u_t - \…

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Mathematics Preprint PDF DOI

Hybrid Conjecture in a Mixed Shimura variety

Rodolphe Richard, Andrei Yafaev · 2026

The authors previously formulated the hybrid conjecture, unifying Andr\'e-Pink-Zannier and Andr\'e-Oort conjectures, and proved it in Shimura varieties of abelian type. We study its analogue for mixed…

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Mathematics Preprint PDF DOI

Chains of model structures arising from cotorsion pairs on extriangulated categories

Dandan Sun, Xiaoyan Yang, Dongdong Zhang, Panyue Zhou, Haiyan Zhu · 2026

The main aim of this paper is to study chains of model structures arising from cotorsion pairs in extriangulated categories. Starting with a hereditary Hovey triple, we construct further hereditary Ho…

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Mathematics Preprint PDF DOI

Normal-Yang-Mills and Tangent-Yang-Mills submanifolds

Jianquan Ge, Lixin Xiao, Wenjin Zhang · 2026

This paper investigates the variational problems associated with the $L^2$-norms of the normal and tangent curvature tensors for submanifolds immersed in a unit sphere. We define the critical points o…

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Mathematics Preprint PDF DOI

Modeling Epidemic Spread with Strategic Vaccination and Socialization: a Mean Field Game Analysis

Huaning Liu, Gokce Dayanikli · 2026

We study a game-theoretic model of epidemic control in a large population with finitely many groups and non-cooperative individuals. In the model, individuals jointly choose their socialization levels…

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Mathematics Preprint PDF DOI

Notes on the deformed Hermitian-Yang-Mills equations and the large scaling limits of stability conditions

Yu-Wei Fan · 2026

In this short note, we show that, assuming a conjecture of Arcara and Miles, a line bundle on a smooth complex projective surface admits a deformed Hermitian-Yang-Mills metric if and only if it is sta…

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Mathematics Preprint PDF DOI

Tight constructions for reconfigurations of independent transversals

Ronen Wdowinski · 2026

For a graph $G$ and partition $\mathcal{U}$ of its vertex set, an independent transversal of $(G, \mathcal{U})$ is an independent set of $G$ that contains one vertex from each block of $\mathcal{U}$. …

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Mathematics Preprint PDF DOI

Pohozaev identities and bubbling obstruction for Yang-Mills fields in conformal dimension

Mario Gauvrit · 2026

We study bubbling for sequences of Yang-Mills connections on closed four-manifolds and we derive a compatibility of Pohozaev type between the weak limit connection and the bubble formed at a concentra…

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Mathematics Preprint PDF DOI

Revisiting Subgradient Dominance in Robust MDPs: Counterexamples, Hardness, and Sufficient Conditions

Toshinori Kitamura, Arnob Ghosh, Alex Ayoub, Thang D. Chu, Csaba Szepesvari · 2026

Projected subgradient descent (PSD) has gained popularity for solving robust Markov decision processes (RMDPs) because it applies to a broader class of uncertainty sets than traditional dynamic progra…

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Mathematics Preprint PDF DOI

Relations between higher level Hurwitz class numbers

Ngoc Trinh Le · 2026

We connect generalizations of the classical Hurwitz class numbers coming from two different frameworks: one introduced by Pei and Wang, arising from the generalized Cohen--Eisenstein series, and anoth…

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Mathematics Preprint PDF DOI

Asymptotically Z-stable bundles over projective surfaces

Luiz Lara, Henrique N. Sa Earp · 2026

We study the existence of asymptotically $Z$-stable (a.Z stable) bundles over polycyclic surfaces. Our choice of polynomial central charge is related to the existence of solutions of the deformed Herm…

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Mathematics Preprint PDF DOI

Monochromatic Sums and Quotients Near Zero

Md Moid Shaikh, Sourav Kanti Patra, Mukesh Kumar · 2026

Recently S. Goswami proved that whenever the set $\mathbb N$ of natural numbers is finitely colored, the set $\{a, b, ab, b(a+1)\}$ is monochromatic which also established a variant of the long-standi…

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