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20 results for “Polyominoes”

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cs.DMTheoreticalRecentJun 11, 2026

Snake Polyominoes of Maximal Area in a Rectangle

Alexandre Blondin Massé, Alain Goupil

This paper presents an algorithm to generate snake-like polyominoes within a given rectangle and provides exact formulas for the maximal area of such polyominoes for certain dimensions.

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cs.DMTheoreticalRecentJun 11, 2026

Fibonacci and Catalan Numbers Meet in Staircase Polyominoes

Jean-Luc Baril, José Luis Ramírez, Samuel Ramírez, Diego Villamizar

This paper derives multivariate generating functions to refine the enumeration of Fibonacci polyominoes.

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cs.DMcs.CGTheoreticalRecentJun 11, 2026

On the Counting Sequence of Z-convex Polyominoes

Luca Castelli, Paolo Massazza

This paper presents a set of formulas and equations to compute the longest counting sequence of convex polyominoes of degree of convexity at most 2.

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cs.DScs.DMTheoreticalRecentJun 11, 2026

(Un)ranking Permutation Classes

Nathanaël Hassler, Vincent Vajnovszki

This paper presents methods for ranking and unranking permutations avoiding a pattern of length three in lexicographic or colexicographic order.

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cs.CRRecentMay 3, 2026

Chain Reactions: How Nonce Collisions in ECDSA Compromise Polygon MEV Searchers

Yash Madhwal, Andrey Seoev, Raffaele Della Pietra, Anastasiia Smirnova +1 more

The paper reveals that predictable nonce reuse by Polygon MEV searchers creates a critical vulnerability in ECDSA signatures, allowing passive attackers to recover private keys using linear algebra.

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cs.CRRecentMay 11, 2026

Mapping Partisan Fault Lines Within DAOs

Thomas Lloyd, Daire Ó Broin, Martin Harrigan

The paper proposes a method using on-chain voting analysis to detect emerging partisan communities within DAOs, demonstrating that addresses destined to fork cluster together months before actual orga…

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cs.CRRecentApr 30, 2026

SBN Explorer: An Empirical Study of Cryptographic Boolean Networks

Arnaud Valence

The paper systematically explores a vast design space of cryptographic Boolean networks by formalizing six structural constraints, finding that optimal designs result from sparse, mutually compatible…

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cs.CRcs.LGRecentMar 24, 2026

Combinatorial Privacy: Private Multi-Party Bitstream Grand Sum by Hiding in Birkhoff Polytopes

Praneeth Vepakomma

The paper introduces PolyVeil, a protocol for private Boolean summation that uses permutation matrices in the Birkhoff polytope, achieving strong security guarantees while highlighting a fundamental t…

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cs.CCcs.DSRecentMay 30, 2026

Search-space Reduction for Boolean MinCSPs via Essential Constraints

Bart M. P. Jansen, Ruben F. A. Verhaegh

The paper introduces a method to efficiently detect 'essential' constraints in Boolean MinCSPs, significantly reducing the search space for solving these problems and providing a dichotomy theorem for…

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cs.CGmath.ATmath.CORecentMay 29, 2026

Towards fast computation of higher discrete homology

Jacob Ender, Chris Kapulkin

The paper presents a novel and significantly faster algorithm for computing the second discrete homology group of a graph by identifying five basic quotient shapes of the 3-cube.

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cs.DScs.CRRecentJun 4, 2026

Multi-Objective Submodular Maximization with Differential Privacy

Ting Hou, Yanhao Wang, Yiping Wang, Cen Chen +2 more

This paper addresses the challenging problem of multi-objective submodular maximization under a cardinality constraint while ensuring differential privacy, proposing novel algorithms with approximatio…

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cs.ITcs.CRRecentMay 22, 2026

On APN Exponents and the Differential and Boomerang Properties of Binomials in Characteristic 3

Namhun Koo, Soonhak Kwon, Minwoo Ko, Byunguk Kim

This paper systematically analyzes binomial functions over $\mathbb{F}_{p^n}$ in characteristic 3, providing a classification and rigorous proof of specific classes of exponents that yield extremely l…

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cs.CCq-bio.QMRecentJun 1, 2026

Structure-Informed Multiple Sequence Alignment: A Formal Model and Hardness Results

Yoshiki Kanazawa, Naphan Benchasattabuse, Michal Hajdušek, Rodney Van Meter

The paper formally models structure-informed multiple sequence alignment (MSA-S) as an NP-complete optimization problem, establishing a strong computational complexity baseline for the field.

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cs.CRRecentMay 26, 2026

Analyzing Linear Layers in Related-Differential Cryptanalysis

Yogesh Kumar, Akshay Ankush Yadav, Susanta Samanta

The paper systematically investigates the conditions under which linear layers in AES-like ciphers avoid related-differential structures, proving that the MDS property is necessary and identifying spe…

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cs.CRquant-phRecentApr 17, 2026

Module Lattice Security (Part I): Unconditional Verification of Weber's Conjecture for $k \le 12$

Ming-Xing Luo

This paper provides the first unconditional proof for Weber's Conjecture for the case $k ext{ up to } 12$, which is crucial for lattice-based cryptography.

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cs.DMmath.COmath.DSTheoreticalRecentJun 11, 2026

The Curious Case of Reversible Elementary Second Order Cellular Automaton 115

Enrico Formenti, Supreeti Kamylia

The paper proves that the reversible elementary second order cellular automaton rule 115 is periodic when started on finite initial configurations.

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cs.DMcs.DSEmpiricalRecentJun 11, 2026

Exhaustive Generation of Genus-One Knot and Link Diagrams via Maps on the Torus

Alexander Omelchenko

This paper presents an algorithmic framework for exhaustively generating and tabulating knot and link diagrams on the thickened torus.

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math.CTcs.CRRecentMar 17, 2026

From Torsors to Topoi: An Introduction with a View Toward $Σ$-Protocols in Cryptography

Takao Inoué

This paper provides a focused, preparatory introduction to sheaves and topoi, establishing the necessary structural background to understand the advanced sheaf-theoretic framework used in cryptographi…

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cs.DScs.CRmath.NTRecentMay 17, 2026

Module Lattice Security (Part III): Structured CVP Distance on the Log-Unit Lattice

Ming-Xing Luo

The paper analyzes the structured CVP distance on the log-unit lattice of cyclotomic fields, significantly reducing the conjectured CDPR factor for the ML-KEM cryptosystem from exponential to sub-poly…

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