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We develop a new approach to deformation quantizations of Lie bialgebras and Poisson structures which goes in two steps. In the first step one associates to any Poisson (resp. Lie bialgebra) structure a so called quantizable Poisson (resp.…

Quantum Algebra · Mathematics 2016-12-02 Sergei Merkulov , Thomas Willwacher

We report a novel approach for the efficient computation of solutions of a broad class of large-scale systems of non-linear ordinary differential equations, describing aggregation kinetics. The method is based on a new take on the…

Numerical Analysis · Mathematics 2023-12-14 Dmitrii Lukashevich , Ivan Tyukin , Nikolay Brilliantov

Performance and complexity of sequential decoding of polarization-adjusted convolutional (PAC) codes is studied. In particular, a performance and computational complexity comparison of PAC codes with 5G polar codes and convolutional codes…

Information Theory · Computer Science 2020-12-18 Mohsen Moradi , Amir Mozammel , Kangjian Qin , Erdal Arikan

Complexity of patterns is a key information for human brain to differ objects of about the same size and shape. Like other innate human senses, the complexity perception cannot be easily quantified. We propose a transparent and universal…

Pattern Formation and Solitons · Physics 2020-12-30 Andrey A. Bagrov , Ilia A. Iakovlev , Askar A. Iliasov , Mikhail I. Katsnelson , Vladimir V. Mazurenko

We apply a Bethe-Peierls approach to statistical-mechanics models defined on random networks of arbitrary degree distribution and arbitrary correlations between the degrees of neighboring vertices. Using the NP-hard optimization problem of…

Disordered Systems and Neural Networks · Physics 2009-11-07 Alexei Vazquez , Martin Weigt

All binary self-dual [44,22,8] codes with an automorphism of order 3 or 7 are classified. In this way we complete the classification of extremal self-dual codes of length 44 having an automorphism of odd prime order.

Combinatorics · Mathematics 2015-03-13 Stefka Bouyuklieva , Nikolay Yankov , Radka Russeva

We consider a problem of decomposition of a ternary function into a composition of binary ones from the viewpoint of communication complexity and algorithmic information theory as well as some applications to cellular automata.

Formal Languages and Automata Theory · Computer Science 2010-12-07 Alexander Shen

We derive bifurcation test equations for A-series singularities of nonlinear functionals and, based on these equations, we propose a numerical method for detecting high codimensional bifurcations in parameter-dependent PDEs such as…

Numerical Analysis · Mathematics 2020-03-20 Lisa Maria Kreusser , Robert I McLachlan , Christian Offen

The (classical) crosscorrelation is an important measure of pseudorandomness of two binary sequences for applications in communications. The arithmetic crosscorrelation is another figure of merit introduced by Goresky and Klapper…

Cryptography and Security · Computer Science 2022-03-23 Zhixiong Chen , Zhihua Niu , Arne Winterhof

Understanding natural phenomenon through the interactions of different complex systems has become an increasing focus in scientific inquiry. Defining complexity and actually measuring it is an ongoing debate and no standard framework has…

Information Theory · Computer Science 2026-01-21 Gabriel Potestades

The problem of whether and how one can compute the twin-width of a graph -- along with an accompanying contraction sequence -- lies at the forefront of the area of algorithmic model theory. While significant effort has been aimed at…

Data Structures and Algorithms · Computer Science 2023-10-13 Jakub Balabán , Robert Ganian , Mathis Rocton

We consider the homeomorphic classification of finite-dimensional continua as well as several related equivalence relations. We show that, when $n \geq 2$, the classification problem of $n$-dimensional continua is strictly more complex than…

Logic · Mathematics 2019-04-23 Cheng Chang , Su Gao

Computational studies of basic models of strongly-correlated electron systems can provide guidance in the search for new materials as well as insight into the physical mechanisms responsible for their properties. Here, we illustrate this by…

Strongly Correlated Electrons · Physics 2009-11-07 D. J. Scalapino

Invariants of general linear system of two hyperbolic partial differential equations (PDEs) are derived under transformations of the dependent and independent variables by real infinitesimal method earlier. Here a subclass of the general…

Classical Analysis and ODEs · Mathematics 2015-08-14 A. Aslam , M. Safdar , F. M. Mahomed

We provide first a categorical exploration of, and then completion of the mapping of the relationships among, three fundamental perspectives on binary relations: as the incidence matrices of hypergraphs, as the formal contexts of concept…

Combinatorics · Mathematics 2025-04-22 Robert E. Green , Cliff A. Joslyn , Audun Myers , Michael G. Rawson , Michael Robinson

We investigate the complexity of bilevel combinatorial optimization with uncertainty in the follower's objective, in a robust optimization approach. We show that the robust counterpart of the bilevel problem under interval uncertainty can…

Optimization and Control · Mathematics 2021-08-05 Christoph Buchheim , Dorothee Henke , Felix Hommelsheim

In this paper, a low-complexity approach for the automorphism ensemble decoder (AED) using successive cancellation (SC) as constituent decoders is proposed. The approach sequentially activates sub-decoders and terminates the decoding…

Information Theory · Computer Science 2026-05-21 Charles Pillet , Pascal Giard , Bassant Selim , François Leduc-Primeau

The paper concerns two versions of the notion of real forms of Lie superalgebras. One is the standard approach, where a real form of a complex Lie superalgebra is a real Lie superalgebra such that its complexification is the original…

Rings and Algebras · Mathematics 2007-05-23 F. Pellegrini

In 2012, Diem introduced a new figure of merit for cryptographic sequences called expansion complexity. In this paper, we slightly modify this notion to obtain the so-called irreducible-expansion complexity which is more suitable for…

Number Theory · Mathematics 2017-02-20 Gómez-Pérez , László Mérai , Harald Niederreiter

This is a technical report, containing all the theorem proofs and additional evaluations in paper "Efficient Identification of Additive Link Metrics via Network Tomography" by Liang Ma, Ting He, Kin K. Leung, Don Towsley, and Ananthram…

Networking and Internet Architecture · Computer Science 2020-12-23 Liang Ma , Ting He , Kin K. Leung , Don Towsley , Ananthram Swami