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Mathematics Preprint PDF DOI

Computing the Exchange Number in Graphs with respect to Cycle Convexity

Revathy S. Nair, Bijo S. Anand, Julliano R. Nascimento ยท 2026

Given a graph $G$, a subset $S \subseteq V(G)$ is \textit{cycle convex}, if for any vertex $v \in V(G) \setminus S$, the induced subgraph, $G[S \cup \{v\}]$ cannot form a cycle containing the vertex $โ€ฆ

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AI & Data Science Preprint PDF DOI

The Continuity Layer: Why Intelligence Needs an Architecture for What It Carries Forward

Samuel Sameer Tanguturi ยท 2026

The most important architectural problem in AI is not the size of the model but the absence of a layer that carries forward what the model has come to understand. Sessions end. Context windows fill. Mโ€ฆ

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Physics Preprint PDF DOI

Dark matter heating of Planet 9, and its observational implications

Tiberiu Harko ยท 2026

The observed unusual behaviors of the orbits of Trans-Neptunian objects as well as the gravitational anomalies detected by the Optical Gravitational Lensing Experiment can be explained by assuming theโ€ฆ

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AI & Data Science Preprint PDF DOI

ATANT v1.1: Positioning Continuity Evaluation Against Memory, Long-Context, and Agentic-Memory Benchmarks

Samuel Sameer Tanguturi ยท 2026

ATANT v1.0 (arXiv:2604.06710) defined continuity as a system property with 7 required properties and introduced a 10-checkpoint, LLM-free evaluation methodology validated on a 250-story corpus. Since โ€ฆ

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AI & Data Science Preprint PDF DOI

ATANT: An Evaluation Framework for AI Continuity

Samuel Sameer Tanguturi ยท 2026

We present ATANT (Automated Test for Acceptance of Narrative Truth), an open evaluation framework for measuring continuity in AI systems: the ability to persist, update, disambiguate, and reconstruct โ€ฆ

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Computer Science Preprint PDF DOI

Subquadratic Counting via Perfect Marginal Sampling

Xiaoyu Chen, Zongchen Chen, Kuikui Liu, Xinyuan Zhang ยท 2026

We study the computational complexity of approximately computing the partition function of a spin system. Techniques based on standard counting-to-sampling reductions yield $\tilde{O}(n^2)$-time algorโ€ฆ

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Mathematics Preprint PDF DOI

Quasi-Banach spaces of random variables and stochastic processes

Yuriy Kozachenko, Yuriy Mlavets, Oleksandr Mokliachuk ยท 2026

This book develops the theory of quasi-Banach $K_\sigma$-spaces $\mathbf{F}_\psi(\Omega)$, $\mathbf{F}_\psi^*(\Omega)$, and $D_{V,W}(\Omega)$ of random variables and stochastic processes, extending thโ€ฆ

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Mathematics Preprint PDF DOI

The Scholar-Priest and the Paradox of Service: Jozsef Sutak's Role in the Hungarian Mathematical Golden Age

Andras Batkai ยท 2026

This paper re-evaluates Jozsef Sutak (1865-1954), a Hungarian scholar-priest and professor, as a grey eminence rather than a genius, offering a counter-narrative to the history of Hungarian universityโ€ฆ

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AI & Data Science Preprint PDF DOI

Selective Memory for Artificial Intelligence: Write-Time Gating with Hierarchical Archiving

Oliver Zahn, Simran Chana ยท 2026

Retrieval-augmented generation stores all content indiscriminately, degrading accuracy as noise accumulates. Parametric approaches compress knowledge into weights, precluding selective updates. Neitheโ€ฆ

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Mathematics Preprint PDF DOI

Vector-Valued Invariants Associated with All Irreducible Representations for a Finite Group

A. K. M. Selim Reza, Manabu Oura, Masashi Kosuda ยท 2026

We investigate the complex reflection group $\mathfrak{G}$ associated with the octahedral group, identified as the ninth entry in the Shephard-Todd classification. We determine all irreducible represeโ€ฆ

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Computer Science Preprint PDF DOI

Pre-Clinical Latency Characterization of VRxBioRelax: A Real-Time EMG Biofeedback System for Muscle Relaxation in Virtual Reality

Melanie Baumgartner, Raphael Weibel, Tobias Hoesli, Aydin Javadov, Rayna Ney, Helen Schwerdt, Florian von Wangenheim, Joseph Ollier ยท 2026

Chronic tension in the upper trapezius (UT), often caused by poor ergonomics, prolonged posture, or psychological stress, contributes to musculoskeletal discomfort, headaches, and impaired interoceptiโ€ฆ

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Physics Preprint PDF DOI

Thermal stable nonlinear Raman-Nath diffraction and Cherenkov radiation in PPKTP crystals

Tao Xie, YangMing Liu, WenXin Zhu, XueShi Guo, RuiBo Jin ยท 2026

Nonlinear Raman-Nath diffraction (NRND) and nonlinear Cherenkov radiation (NCR) are significant nonlinear diffraction phenomena in optics. Previous studies have primarily focused on NRND and NCR in unโ€ฆ

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Physics Preprint PDF DOI

Flavor in Ninths and a Discrete Gauge Origin of the QCD Axion

Vernon Barger ยท 2026

Quark and lepton hierarchies are organized by rational powers of a single parameter in units of one ninth. We show that this ``flavor in ninths'' structure points to a discrete $\mathbb{Z}_{18}$ gaugeโ€ฆ

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Computer Science Preprint PDF DOI

Anansi: Scalable Characterization of Message-Based Job Scams

Abisheka Pitumpe, Amir Rahmati ยท 2026

Job-based smishing scams, where victims are recruited under the guise of remote job opportunities, represent a rapidly growing and understudied threat within the broader landscape of online fraud. In โ€ฆ

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Mathematics Preprint PDF DOI

On linear lexicographic codes: Ninth column construction of the ternary Golay code

Yuki Irie ยท 2026

We characterize linear lexicographic $p$-ary codes. Using this characterization, when $p \ge 3$, we determine the dimensions of linear lexicographic codes obtained from several bases including the staโ€ฆ

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Physics Preprint PDF DOI

The SB9 catalogue: status, comparison with non-single stars from Gaia DR3 and evolution to SBX

T. Merle, A. Jorissen, S. Alexandre, J. Desuter, C. Loup, A. Tokovinin, G. Traven, M. Van der Swaelmen, S. Van Eck, G. Van de Steene, J. Southworth, G. Sadowski ยท 2026

The Ninth Catalogue of Spectroscopic Binary Orbits (SB9) is a comprehensive compilation of spectroscopic binaries (SBs) with orbital parameters sourced from literature, comprising approximately 4000 sโ€ฆ

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History & Literature Preprint PDF DOI

Todos estos edificios se hacen de diverso modo que en Europa: Estudio arqueoastron\'omico de las iglesias jesu\'iticas de Chiquitos

Alejandro Gangui ยท 2026

The study of the spatial layout of Christian churches has been of great interest since late Antiquity and the beginning of the Early Middle Ages, and has received a new impetus in recent literature whโ€ฆ

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Mathematics Preprint PDF DOI

A Geometric Characterization of Maximal Unrefinable Partitions via the Keith-Nath Transformation and Young Diagrams

Riccardo Aragona, Roberto Civino, Lorenzo Campioni ยท 2026

We investigate the combinatorial structure of unrefinable partitions through their correspondence with numerical sets and Young diagrams. Building on the bijection introduced by Keith and Nath, we appโ€ฆ

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Mathematics Preprint PDF DOI

Numerical Study of Dissipative Weak Solutions for the Euler Equations of Gas Dynamics

Shaoshuai Chu, Michael Herty, Alexander Kurganov, Maria Lukacova-Medvidova, Changsheng Yu ยท 2026

We study dissipative weak (DW) solutions of the Euler equations of gas dynamics using the first-, second-, third-, fifth-, seventh-, and ninth-order local characteristic decomposition-based central-upโ€ฆ

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Mathematics Preprint PDF DOI

Nonclassical symmetries of polynomial equations and test problems with parameters for computer algebra systems

Inna K. Shingareva, Andrei D. Polyanin ยท 2026

Nonclassical symmetries and reductions of polynomial equations and systems of polynomial equations are considered. It is shown that specific polynomial equations having "hidden" symmetries can be reduโ€ฆ

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