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Related papers: Generalized Carleson--Newman inner functions

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We introduce and investigate a class of $\mathfrak{gl}_{M+1}$ partition functions which is an extension of the one introduced by Foda-Manabe. We characterize the partition functions by a nested version of Izergin-Korepin analysis, and…

Mathematical Physics · Physics 2025-01-28 Allan John Gerrard , Kohei Motegi , Kazumitsu Sakai

We show that a version of the desingularization theorem of Hironaka holds for certain classes of infinitely differentiable functions (essentially, for subrings that exclude flat functions and are closed under differentiation and the…

Complex Variables · Mathematics 2007-05-23 Edward Bierstone , Pierre D. Milman

We extend the notion of intrinsic entropy for endomorphisms of Abelian groups to endomorphisms of modules over an Archimedean non-discrete valuation domain $R$, using the natural non-discrete length function introduced by Northcott and…

Rings and Algebras · Mathematics 2017-11-27 Luigi Salce , Simone Virili

In order to introduce the notion of causality in noncommutative geometry it is necessary to extend Gelfand theory to the context of ordered spaces. In a previous work we have already given an algebraic caracterization of the set of…

Operator Algebras · Mathematics 2015-06-18 Fabien Besnard

This work extends the Mond-Pecaric method to functions with multiple operators as arguments by providing arbitrarily close approximations of the original functions. Instead of using linear functions to establish lower and upper bounds for…

Functional Analysis · Mathematics 2024-07-09 Shih-Yu Chang

Generalized smooth functions are a possible formalization of the original historical approach followed by Cauchy, Poisson, Kirchhoff, Helmholtz, Kelvin, Heaviside, and Dirac to deal with generalized functions. They are set-theoretical…

Functional Analysis · Mathematics 2016-06-14 Paolo Giordano , Michael Kunzinger

This paper studies the equivalence between generalized holomorphic functions (GHF) and complex analytic functions in the framework of Robinson-Colombeau generalized numbers. In every non-Archimedean ring, the use of ordinary series is…

Functional Analysis · Mathematics 2026-04-21 Sekar Nugraheni , Paolo Giordano

We prove sharp weighted estimates for the non-tangential maximal function of singular integrals mapping functions from $\mathbf{R}^n$ to the half-space in $\mathbf{R}^{1+n}$ above $\mathbf{R}^n$. The proof is based on pointwise sparse…

Classical Analysis and ODEs · Mathematics 2024-09-04 Andreas Rosén

We prove a bilinear Carleson embedding theorem with matrix weight and scalar measure. In the scalar case, this becomes exactly the well known weighted bilinear Carleson embedding theorem. Although only allowing scalar Carleson measures, it…

Classical Analysis and ODEs · Mathematics 2023-03-30 Stefanie Petermichl , Sandra Pott , Maria Carmen Reguera

In this study, a subclass of an univalent function with negative coefficients which is defined by a new general Linear operator have been introduced. The sharp results for coefficients estimators, distortion and closure bounds, Hadamard…

Complex Variables · Mathematics 2020-05-15 Mazin Sh. Mahmoud , Abdul Rahman S. Juma , Raheam A. Mansor Al-Saphory

Gel'fand triples of test and generalized functionals in Gaussian spaces are constructed and characterized.

Functional Analysis · Mathematics 2007-05-23 Yu. G. Kondratiev , P. Leukert , J. Potthoff , L. Streit , W. Westerkamp

In the multicentric calculus one takes a polynomial with simple roots as a new global variable and replaces scalar functions {\varphi} by functions f taking values in C^d with d the degree of the polynomial leading to an efficient…

Functional Analysis · Mathematics 2021-05-28 Diana Andrei

Based on a refinement of the notion of internal sets in Colombeau's theory, so-called strongly internal sets, we introduce the space of generalized smooth functions, a maximal extension of Colombeau generalized functions. Generalized smooth…

Functional Analysis · Mathematics 2016-09-15 Paolo Giordano , Michael Kunzinger , Hans Vernaeve

We discuss the notion of an inner function for spaces of analytic functions in multiply connected domains in $\mathbb{C}$, giving a historical overview and comparing several possible definitions. We explore connections between inner…

Complex Variables · Mathematics 2019-07-18 Catherine Bénéteau , Matthew Fleeman , Dmitry Khavinson , Alan A. Sola

We introduce a class $\Lambda_{s}$ of functions with complicated local structure. Any function from the class belongs to one of three specifically defined types $f^s _k$, $f_+$, and $f^{-1} _+$ or is a specifically defined composition of…

Classical Analysis and ODEs · Mathematics 2017-05-19 Symon Serbenyuk

The definition of a non-trivial space of generalized functions of a complex variable allowing to consider derivatives of continuous functions is a non-obvious task, e.g. because of Morera theorem, because distributional Cauchy-Riemann…

Functional Analysis · Mathematics 2025-10-30 Sekar Nugraheni , Paolo Giordano

It is well-known that for any inner function $\theta$ defined in the unit disk $D$ the following two conditons: $(i)$ there exists a sequence of polynomials $\{p_n\}_n$ such that $\lim_{n \to \infty} \theta(z) p_n(z) = 1$ for all $z \in D$,…

Complex Variables · Mathematics 2022-05-19 Bartosz Malman

If $\fA$ is a unital weak-$*$ closed algebra of multiplication operators on a reproducing kernel Hilbert space which has the property $\bA_1(1)$, then the cyclic invariant subspaces index a Nevanlinna-Pick family of kernels. This yields an…

Functional Analysis · Mathematics 2011-01-10 Kenneth R. Davidson , Ryan Hamilton

In this paper we introduce Hausdorff locally convex algebra topologies on subalgebras of the whole algebra of nonlinear generalized functions. These topologies are strong duals of Fr\'echet-Schwartz space topologies and even strong duals of…

Functional Analysis · Mathematics 2014-03-21 J. Aragona , J. F. Colombeau , S. O. Juriaans

The classical theorems of Mittag-Leffler and Weierstrass show that when $\{\lambda_n\}$ is a sequence of distinct points in the open unit disk $\D$, with no accumulation points in $\D$, and $\{w_n\}$ is any sequence of complex numbers,…

Complex Variables · Mathematics 2020-10-09 Javad Mashreghi , Marek Ptak , William T. Ross