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In this paper, we consider free transposed Poisson algebra and free F-manifold algebra with an additional metabelian identity. We construct a linear basis for both free metabelian transposed Poisson algebra and free metabelian F-manifold…

Rings and Algebras · Mathematics 2024-08-13 K. Abdukhalikov , B. K. Sartayev

We investigate the star-free closure, which associates to a class of languages its closure under Boolean operations and marked concatenation. We prove that the star-free closure of any finite class and of any class of groups languages with…

Formal Languages and Automata Theory · Computer Science 2019-04-29 Thomas Place , Marc Zeitoun

This paper explicitely constructs cofree coalgebras over operads in the category of DG-modules. Special cases are considered in which the general expression simplifies (such as the pointed, irreducible case). It is shown that the existence…

Algebraic Topology · Mathematics 2007-05-23 Justin R. Smith

We show that the notion of MAT-freeness for hyperplane arrangements depends on the underlying field. In particular, MAT-freeness is not combinatorial.

Combinatorics · Mathematics 2025-12-05 Torsten Hoge , Gerhard Roehrle

We prove that the homotopy theory of $N_\infty$ operads is equivalent to a homotopy theory of discrete operads, and we construct free and associative operadic realizations of every indexing system. This resolves a conjecture of Blumberg and…

Algebraic Topology · Mathematics 2022-01-05 Jonathan Rubin

An operad describes a category of algebras and a (co)homology theory for these algebras may be formulated using the homological algebra of operads. A morphism of operads $f:\mathcal{O}\rightarrow\mathcal{P}$ describes a functor allowing a…

Rings and Algebras · Mathematics 2014-03-20 James Griffin

We show that uncloneable encryption exists with no computational assumptions, with security $\widetilde{O}\left(\tfrac{1}{\lambda}\right)$ in the security parameter $\lambda$.

Quantum Physics · Physics 2026-04-02 Archishna Bhattacharyya , Eric Culf

In this paper, we develop a method to obtain the algebraic classification of compatible pre-Lie algebras from the classification of pre-Lie algebras of the same dimension. We use this method to obtain the algebraic classification of complex…

Rings and Algebras · Mathematics 2024-12-02 Hani Abdelwahab , Ivan Kaygorodov , Abdenacer Makhlouf

Recent advances in the theory of complex symmetric operators are presented and related to current studies in non-hermitian quantum mechanics. The main themes of the survey are: the structure of complex symmetric operators, $C$-selfadjoint…

Functional Analysis · Mathematics 2014-09-17 Stephan Ramon Garcia , Emil Prodan , Mihai Putinar

Extending the symmetric framework of D'Adderio and Mellit, we establish a nonsymmetric generalization of the compositional Delta theorem. Building on Blasiak et al.'s theory of flagged LLT polynomials, we derive signed and unsigned…

Combinatorics · Mathematics 2026-04-14 Dun Qiu , Minhao Zhang

We prove that the set of all complex symmetric operators on a separable, infinite-dimensional Hilbert space is not norm closed.

Functional Analysis · Mathematics 2011-03-31 Stephan Ramon Garcia , Daniel E. Poore

This paper proves the isomorphic criterion theorem for (n+2)-dimensional n-Lie algebras, and gives a complete classification of (n+1)-dimensional n-Lie algebras and (n+2)-dimensional n-Lie algebras over an algebraically closed field of…

Mathematical Physics · Physics 2010-06-11 Ruipu Bai , Guojie Song , Yaozhong Zhang

We construct a free Poisson algebra endowed with a Rota-Baxter operator. The same construction works for a free Poisson algebra endowed with a Nijenhuis operator.

Rings and Algebras · Mathematics 2026-04-23 Vsevolod Gubarev

These notes have the intent to introduce the study of the nonlinear aspects of operator space theory. We investigate some results on the nonlinear theory of Banach spaces which remain valid in the noncommutative case. In particular, we show…

Operator Algebras · Mathematics 2019-12-04 Bruno de Mendonça Braga , Thomas Sinclair

In this article, we prove the Weyl-von Neumann theorem for antilinear skew-self-adjoint operators. More specifically, we prove the following: Let $A$ be an antilinear skew-self-adjoint operator on a separable Hilbert space $H$ whose kernel…

Functional Analysis · Mathematics 2026-02-04 G. Ramesh

We give sufficient conditions for the existence of a model structure on operads in an arbitrary symmetric monoidal model category. General invariance properties for homotopy algebras over operads are deduced.

Algebraic Topology · Mathematics 2009-09-29 Clemens Berger , Ieke Moerdijk

Some binary quadratic operads are endowed with anticyclic structures and their characteristic functions as anticyclic operads are determined, or conjectured in one case.

Quantum Algebra · Mathematics 2014-10-01 Frederic Chapoton

We establish 2-jet determinacy for the symmetry algebra of the underlying structure of any (complex or real) parabolic geometry. At non-flat points, we prove that the symmetry algebra is in fact 1-jet determined. Moreover, we prove 1-jet…

Differential Geometry · Mathematics 2017-11-20 Boris Kruglikov , Dennis The

In this paper, by using the Composition-Diamond lemma for non-associative algebras invented by A. I. Shirshov in 1962, we give Gr\"{o}bner-Shirshov bases for free Pre-Lie algebras and the universal enveloping non-associative algebra of an…

Rings and Algebras · Mathematics 2013-05-08 Yuqun Chen , Yu Li

Differentiations of operator algebras over non-archimedean spherically complete fields are investigated. Theorems about a differentiation being internal are demonstrated.

Functional Analysis · Mathematics 2012-10-09 S. V. Ludkovsky