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In this paper, we present an algebraic approach to idempotent functional analysis, which is an abstract version of idempotent analysis. The basic concepts and results are expressed in purely algebraic terms. We consider idempotent versions…

Functional Analysis · Mathematics 2007-05-23 Grigori Litvinov , Victor Maslov , Grigori Shpiz

In this paper we show that a holomorphic function, defined on an open subset $D$ of $\mathbb{C}^n$, is a complex Nash function if and only if its real part (or equivalently its imaginary part) is a real Nash function.

Complex Variables · Mathematics 2025-11-26 Antonio Carbone

In this paper we find fractional Riemann-Liouville derivatives for the Takagi-Landsberg functions. Moreover, we introduce their generalizations called weighted Takagi-Landsberg functions which have arbitrary bounded coefficients in the…

Classical Analysis and ODEs · Mathematics 2020-03-31 Vitalii Makogin , Yuliya Mishura

We conservatively extend classical elementary differential calculus to the Cartesian closed category of convergence spaces. By specializing results about the convergence space representation of directed graphs, we use Cayley graphs to…

Discrete Mathematics · Computer Science 2015-05-05 Daniel R. Patten , Howard A. Blair , David W. Jakel , Robert J. Irwin

Description Logics (DLs) are used in knowledge-based systems to represent and reason about terminological knowledge of the application domain in a semantically well-defined manner. In this thesis, we establish a number of novel complexity…

Logic in Computer Science · Computer Science 2007-05-23 Stephan Tobies

How do we take repeated derivatives of composed multivariate functions? for one-dimensional functions, the common tools consist of the Fa\'a di Bruno formula with Bell polynomials; while there are extensions of the Fa\'a di Bruno formula,…

Classical Analysis and ODEs · Mathematics 2019-03-12 Aidan Schumann

We study the complexity of deterministic and probabilistic inversions of partial computable functions on the reals.

Logic · Mathematics 2026-01-14 George Barmpalias , Mingyang Wang , Xiaoyan Zhang

In this paper, we present the Leibniz rule for the $\Psi-$Hilfer ($\Psi-$H) fractional derivative in two versions, the first in relation to $\Psi-$RL fractional derivative and the second in relation to the $\Psi-$H fractional derivative. In…

Classical Analysis and ODEs · Mathematics 2018-11-08 J. Vanterler da C. Sousa , E. Capelas de Oliveira

The underlying theme of Teichm\"uller's papers in function theory is a general principle which asserts that every extremal problem for univalent functions of one complex variable is connected with an associated quadratic differential. The…

Complex Variables · Mathematics 2018-01-19 Oliver Roth

In this paper the Mittag-Leffler function is given through the exponential functions for any rational derivatives of m/n order, where m<n, n>1 are natural irreducible numbers (if n=1 then m is also equal to unity). Unlike the previous…

Classical Analysis and ODEs · Mathematics 2019-04-30 Fikret A. Aliev , N. A. Aliev , N. A. Safarova

We establish a theory of NC functions on a class of von Neumann algebras with a particular direct sum property, e.g. $B(\mathcal{H})$. In contrast to the theory's origins, we do not rely on appealing to results from the matricial case. We…

Operator Algebras · Mathematics 2021-07-29 Meric Augat , John E. McCarthy

In this work, we extend the central extension method for solvable Leibniz algebras. Using this method, a complete classification of one-dimensional abelian extensions of five-dimensional solvable Leibniz algebras with a non-trivial…

Rings and Algebras · Mathematics 2025-11-25 A. Kh. Khudoyberdiyev , S. A. Sheraliyeva

A general procedure of affinization of linear algebra structures is illustrated by the case of Leibniz algebras. Specifically, the definition of an affine Leibniz bracket, that is, a bi-affine operation on an affine space that at each…

Rings and Algebras · Mathematics 2025-07-01 Tomasz Brzeziński , Krzysztof Radziszewski , Brais Ramos Pérez

This work is devoted to the classification of solvable Leibniz algebras with an abelian nilradical. We consider $k-1$ dimensional extension of $k$-dimensional abelian algebras and classify all $2k-1$-dimensional solvable Leibniz algebras…

Rings and Algebras · Mathematics 2018-08-21 R. K. Gaybullaev , A. Kh. Khudoyberdiyev , K. Pohl

Jacobson proved that if a Lie algebra admits an invertible derivation, it must be nilpotent. He also suspected, though incorrectly, that the converse might be true: that every nilpotent Lie algebra has an invertible derivation. We prove…

Rings and Algebras · Mathematics 2010-11-30 Wolfgang Alexander Moens

In probabilistic coherence spaces, a denotational model of probabilistic functional languages, morphisms are analytic and therefore smooth. We explore two related applications of the corresponding derivatives. First we show how derivatives…

Logic in Computer Science · Computer Science 2023-06-22 Thomas Ehrhard

This paper introduces a concept of a derivative of the optimal value function in linear programming (LP). Basically, it is the the worst case optimal value of an interval LP problem when the nominal data the data are inflated to intervals…

Optimization and Control · Mathematics 2025-10-07 Milan Hladík

In this paper we prove that local fractional derivatives of differentiable functions are integer-order derivative or zero operator. We demonstrate that the local fractional derivatives are limits of the left-sided Caputo fractional…

Classical Analysis and ODEs · Mathematics 2018-01-26 Vasily E. Tarasov

Using the Schwarzian derivative we construct a sequence $\left(P_{\ell}\right)_{\ell \geqslant 2}$ of meromorphic differentials on every non-flat oriented minimal surface in Euclidean $3$-space. The differentials…

Differential Geometry · Mathematics 2024-07-23 Thomas Mettler , Lukas Poerschke

Differentially-algebraic (D-algebraic) functions are solutions of polynomial equations in the function, its derivatives, and the independent variables. We revisit closure properties of these functions by providing constructive proofs. We…

Algebraic Geometry · Mathematics 2024-08-27 Rida Ait El Manssour , Anna-Laura Sattelberger , Bertrand Teguia Tabuguia