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๐Ÿ” kai wang ๐Ÿ“‚ Mathematics
Showing 10198 results for "kai wang" in Mathematics
Mathematics Preprint PDF DOI

Time-dependent Robin heat equation via Markovian switching

Fausto Colantoni ยท 2026

This paper investigates the heat equation on a bounded domain with a Robin boundary condition, where the reactivity parameter (or killing rate) is modeled as a continuous-time Markov chain. We analyzeโ€ฆ

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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 ยท 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) โ€ฆ

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Mathematics Preprint PDF DOI

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

Victor Buchstaber, Mikhail Kornev, Vladimir Rubtsov ยท 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 viewpoinโ€ฆ

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Mathematics Preprint PDF DOI

Exact formula for the 2-marginal second moment function of the multidimensional symmetric Markov random flight

Alexander D. Kolesnik ยท 2026

We consider the symmetric Markov random flight $\bold X(t), \; t>0,$ in the Euclidean space $\Bbb R^m, \; m\ge 3$, performed by a particle that moves in $\Bbb R^m$ with constant finite speed and changโ€ฆ

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Mathematics Preprint PDF DOI

On a conjecture of distance spectral extremal problems

Hongzhang Chen, Jianxi Li, Yongtao Li ยท 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 soโ€ฆ

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Reachability-Based Design Optimization for Aircraft Maneuverability

Steven Nguyen, Nicholas Orndorff, Jorge Cortes, Boris Kramer ยท 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 optimizeโ€ฆ

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Mathematics Preprint PDF DOI

Positive mass theorem for initial data sets with arbitrary ends

Tin-Yau Tsang ยท 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 shieldinโ€ฆ

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Mathematics Preprint PDF DOI

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

Michael Womack ยท 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-Yanโ€ฆ

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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 ยท 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 โ€ฆ

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Mathematics Preprint PDF DOI

On Global-in-time Solutions of Incompressible MHD Equations with Small Alfv\'en Numbers

Fei Jiang, Xiao Ren, Yi Zhou ยท 2026

In 1965 Kraichnan pointed out that a sufficiently strong background magnetic field, i.e. the case of small Alfv\'en number, will reduce the nonlinear interaction and inhibit the formation of strong grโ€ฆ

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

Chi-Ming Chang ยท 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]:=\mathfrโ€ฆ

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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 ยท 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 - \โ€ฆ

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Hybrid Conjecture in a Mixed Shimura variety

Rodolphe Richard, Andrei Yafaev ยท 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 mixedโ€ฆ

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Chains of model structures arising from cotorsion pairs on extriangulated categories

Dandan Sun, Xiaoyan Yang, Dongdong Zhang, Panyue Zhou, Haiyan Zhu ยท 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 Hoโ€ฆ

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

Jianquan Ge, Lixin Xiao, Wenjin Zhang ยท 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 oโ€ฆ

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

Huaning Liu, Gokce Dayanikli ยท 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 levelsโ€ฆ

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

Yu-Wei Fan ยท 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 staโ€ฆ

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Tight constructions for reconfigurations of independent transversals

Ronen Wdowinski ยท 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 $\mathcal{U}$. โ€ฆ

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Mathematics Preprint PDF DOI

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

Mario Gauvrit ยท 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 concentraโ€ฆ

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

Toshinori Kitamura, Arnob Ghosh, Alex Ayoub, Thang D. Chu, Csaba Szepesvari ยท 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 prograโ€ฆ

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