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Mathematics Preprint PDF DOI

Fillable structures on negative-definite Seifert fibred spaces

Alberto Cavallo, Irena Matkovic · 2026

We classify fillable contact structures on all negative-definite star-shaped plumbings. Along the way, we show that such Seifert fibred spaces admit a unique negative maximal twisting number, and comp…

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Mathematics Preprint PDF DOI

The hat and plus version of the Heegaard Floer contact invariant are not equivalent

Alberto Cavallo, Irena Matkovic · 2026

We advance Matkovi\v{c} ideas, originally applied to complete the classification of tight structures on small Seifert fibred $L$-spaces, to show the existence of contact structures on Brieskorn sphere…

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Mathematics Preprint PDF DOI

Heegaard Floer homology and maximal twisting numbers

Alberto Cavallo, Irena Matkovic · 2026

We adapt the Ozsv\'ath-Szab\'o full path algorithm to every star-shaped graph and establish a correspondence between negative-twisting tight contact structures on any Seifert fibred space over $S^2$, …

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AI & Data Science Preprint PDF DOI

MCPHunt: An Evaluation Framework for Cross-Boundary Data Propagation in Multi-Server MCP Agents

Haonan Li, Tianjun Sun, Yongqing Wang, Qisheng Zhang · 2026

Multi-server MCP agents create an information-flow control problem: faithful tool composition can turn individually benign read/write permissions into cross-boundary credential propagation -- a struct…

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Physics Preprint PDF DOI

TBA equations for $SU(r+1)$ quantum Seiberg-Witten curve: higher-order Mathieu equation

Feiyu Peng, Hongfei Shu · 2026

We develop the ODE/IM correspondence for the higher-order Mathieu equation arising from the quantum Seiberg-Witten curve of the pure $SU(r+1)$ ${\cal N}=2$ supersymmetric Yang-Mills theory. From the s…

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Computer Science Preprint PDF DOI

SST-Guard: Detecting and Characterizing Server-Side Google Analytics in the Wild

Muhammad Jazlan, Alexander Gamero-Garrido, Zubair Shafiq, Yash Vekaria · 2026

As web browsers increasingly restrict client-side tracking, the web tracking ecosystem is shifting from client-side to server-side tracking (SST). In SST, the browser sends tracking requests to an int…

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Computer Science Preprint PDF DOI

Multi-Server Secure Aggregation with Arbitrary Collusion and Heterogeneous Security Constraints

Zhou Li, Xiang Zhang, Jiguang He, Giuseppe Caire · 2026

We study the fundamental limits of multi-server secure aggregation over a two-hop network where multiple servers, each connected to a disjoint subset of users, jointly compute the sum of all users' in…

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Mathematics Preprint PDF DOI

Monsky Matrix and 2-Selmer rank

Shamik Das, Sudipa Mondal · 2026

In this article, we produce infinite families of non-congruent numbers in the residue class of $1,2,$ and $3$ modulo $8$ with arbitrarily many triples or quadruples prime factors. In short, we use Mon…

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Earth & Environmental Sciences Preprint PDF DOI

Evaluating local climate in global storm-resolving models with the K\"oppen-Geiger classification

Chiel C. van Heerwaarden, Menno A. Veerman, Imme Benedict, Lukas Brunner, Edgar Dolores-Tesillos, Emanuel Dutra, Erich Fischer, Junhong Lee, Olivia Martius, Xabier Pedruzo-Bagazgoitia, Ulrike Proske, Sarah N. Warnau, Jonathan D. Willie, Cathy Hohenegger · 2026

Global storm-resolving models aspire to become digital twins of the Earth, delivering information at the local scale at which humans experience climate. We evaluated how well two such models, ICON and…

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Physics Preprint PDF DOI

Big Dipper, Help Me Find A Way -- Dip-hunting at hadron colliders

Diego A. Baron Moreno, Christoph Englert, Yvonne Peters · 2026

Destructive interference between signal and background processes poses a fundamental challenge in searches for top-philic scalar resonances, significantly reducing experimental sensitivity to well-mot…

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Physics Preprint PDF DOI

Non-Hermitian Synthetic Phase Shifter: Topologically-Protected Phase Control via Tunable Losses

Kevin Zelaya, Jonathan Friedman, Hector Rubio, Stefan Preble, Mohammad-Ali Miri · 2026

Phase shifters are fundamental reconfigurable components in photonic circuits. In conjunction with passive elements, they control light flow and serve as foundational building blocks for diverse appli…

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Mathematics Preprint PDF DOI

$2$-Selmer groups, $2$-class groups, and congruent numbers

Shamik Das, Debajyoti De, Sudipa Mondal · 2026

In this article, we study necessary conditions for certain square-free integers to be congruent numbers. Our method uses divisibility properties of class numbers of related imaginary quadratic fields.…

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Mathematics Preprint PDF DOI

Some New Results on Seidel Equienergetic Graphs

Samir K. Vaidya, Kalpesh M. Popat · 2026

The energy of a graph $G$ is the sum of the absolute values of the eigenvalues of the adjacency matrix of $G$. Some variants of energy can also be found in the literature which are defined on the conc…

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Computer Science Preprint PDF DOI

Risk-Aware and Stable Edge Server Selection Under Network Latency SLOs

Mohan Liyanage, Arnova Abdullah, Eldiyar Zhantileuov, Rolf Schuster · 2026

We present a lightweight and interpretable decision framework for dynamic edge server selection in latency-critical applications that explicitly accounts for tail risk and switching stability. Each ca…

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Computer Science Preprint PDF DOI

MCP Pitfall Lab: Exposing Developer Pitfalls in MCP Tool Server Security under Multi-Vector Attacks

Run Hao, Zhuoran Tan · 2026

Model Context Protocol (MCP) is increasingly adopted for tool-integrated LLM agents, but its multi-layer design and third-party server ecosystem expand risks across tool metadata, untrusted outputs, c…

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Biology & Life Sciences Preprint PDF DOI

VARIANT: Web Server for Decoding and Analyzing Viral Mutations at Genome and Protein Levels

Rui Wang, Xuhang Dai, Xin Cao, Changchuan Yin, Tamar Schlick, Guo-Wei Wei · 2026

A comprehensive analysis of viral mutations is essential for understanding viral evolution, disease epidemiology, diagnosis, drug resistance, etc. However, challenges remain in capturing complex mutat…

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Mathematics Preprint PDF DOI

Floer homotopy type and eta invariants of Seifert $3$-manifolds fibering over $\mathbb{RP}^2$

David Baraglia, Pedram Hekmati · 2026

We compute the Floer homology and Seiberg-Witten Floer homotopy type of Seifert rational homology $3$-spheres which fiber over $\mathbb{RP}^2$. We show that they are all $L$-spaces and their Floer hom…

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Mathematics Preprint PDF DOI

Statistical Limit Theorems for Axiom A Diffeomorphisms: Exponential Mixing, Central Limit Theorem, and Large Deviations

Abdoulaye Thiam · 2026

We establish statistical limit theorems for equilibrium states of Axiom A diffeomorphisms, derived from the spectral gap of the Ruelle transfer operator established in Part I (Thiam2026a) and transfer…

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Physics Preprint PDF DOI

Predicting Redshift in Seyfert Galaxies Using Machine Learning

Uzay Aydin · 2026

Photometric redshift estimation is a key requirement for modern large-area surveys, where spectroscopic measurements are observationally prohibitive. Seyfert II galaxies provide a particularly challen…

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AI & Data Science Preprint PDF DOI

DeInfer: Efficient Parallel Inferencing for Decomposed Large Language Models

You-Liang Huang, Xinhao Huang, Chengxi Liao, Zeyi Wen · 2026

Existing works on large language model (LLM) decomposition mainly focus on improving performance on downstream tasks, but they ignore the poor parallel inference performance when trying to scale up th…

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