English
Related papers

Related papers: Q-valued functions revisited

200 papers

We extend the notion of quasibounded harmonic functions to the plurisubharmonic setting. As an application, using the theory of Jensen measures, we show that certain generalized Dirichlet problems with unbounded boundary data admit unique…

Complex Variables · Mathematics 2025-05-08 Mårten Nilsson , Frank Wikström

We construct Lipschitz $Q$-valued functions which approximate carefully integral currents when their cylindrical excess is small and they are almost minimizing in a suitable sense. This result is used in two subsequent works to prove the…

Analysis of PDEs · Mathematics 2016-06-13 Camillo De Lellis , Emanuele Spadaro , Luca Spolaor

For a standard graded algebra $R$, we consider embeddings of the the poset of Hilbert functions of quotients of $R$ into the poset of ideals of $R$, as a way of classification of Hilbert functions. There are examples of rings for which such…

Commutative Algebra · Mathematics 2012-08-09 Giulio Caviglia , Manoj Kummini

We introduce the Umbral calculus into Clifford analysis starting from the abstract of the Heisenberg commutation relation $[\frac{d}{dx}, x] = {\bf id}$. The Umbral Clifford analysis provides an effective framework in continuity and…

Classical Analysis and ODEs · Mathematics 2011-03-02 Guangbin Ren , Nelson Faustino

We study Neumann functions for divergence form, second order elliptic systems with bounded measurable coefficients in a bounded Lipschitz domain or a Lipschitz graph domain. We establish existence, uniqueness, and various estimates for the…

Analysis of PDEs · Mathematics 2014-09-25 Jongkeun Choi , Seick Kim

We characterise slice-regularity of functions over a real alternative *-algebra using operators that arise in Dunkl operator theory. We present a unifying perspective on hypercomplex analysis by defining a family of function spaces in the…

Complex Variables · Mathematics 2026-02-03 Giulio Binosi , Alessandro Perotti

In this paper, we study $q$-difference analogues of several central results in value distribution theory of several complex variables such as $q$-difference versions of the logarithmic derivative lemma, the second main theorem for…

Complex Variables · Mathematics 2020-11-25 Tingbin Cao , Risto Korhonen

In this paper, for every $q\in(0,1)$, we obtain the Herglotz representation theorem and discuss the Bieberbach type problem for the class of $q$-convex functions of order $\alpha, 0\le\alpha<1$. In addition, we discuss the Fekete-szeg\"o…

Complex Variables · Mathematics 2017-05-22 Sarita Agrawal

We consider different characterizations of Triebel--Lizorkin type spaces of analytic functions on the unit disc. Even though our results appear in the folklore, detailed descriptions are hard to find, and in fact we are unable to discuss…

Functional Analysis · Mathematics 2018-12-03 Eskil Rydhe

We study real-valued valuations on the space of Lipschitz functions over the Euclidean unit sphere $S^{n-1}$. After introducing an appropriate notion of convergence, we show that continuous valuations are bounded on sets which are bounded…

Metric Geometry · Mathematics 2020-05-13 Andrea Colesanti , Daniele Pagnini , Pedro Tradacete , Ignacio Villanueva

Let $\mathrm{SO}^+(p,q)$ denote the identity connected component of the real orthogonal group with signature $(p,q)$. We give a complete description of the spaces of continuous and generalized translation- and $\mathrm{SO}^+(p,q)$-invariant…

Differential Geometry · Mathematics 2018-01-30 Andreas Bernig , Dmitry Faifman

We consider the space of convex functions defined in the Euclidean $n$-dimensional space, which are lower semi-continuous and tend to infinity at infinity. We study real-valued valuations defined on this space of functions, which are…

Metric Geometry · Mathematics 2015-08-04 L. Cavallina , A. Colesanti

We establish power-saving estimates for general bilinear forms with Kloosterman sums modulo arbitrary q, including when both variables are shorter than the Polya-Vinogradov range. As an application, we obtain power-saving asymptotics for…

Number Theory · Mathematics 2025-11-12 Djordje Milićević , Xinhua Qin , Xiaosheng Wu

This work proposes a unified theory of regularity in one hypercomplex variable: the theory of $T$-regular functions. In the special case of quaternion-valued functions of one quaternionic variable, this unified theory comprises…

Complex Variables · Mathematics 2026-04-10 Riccardo Ghiloni , Caterina Stoppato

In this paper, we will constructed p-adic twisted q-l-functions which is a part of answer of the question in [8]. Finally, we will treat many interesting properties related to twisted q-Euler numbers and polynomials.

Number Theory · Mathematics 2007-05-23 S. H. Rim , Y. Simsek , V. Kurt , T. Kim

We define a very general notion of regularity for functions taking values in an alternative real $*$-algebra. Over Clifford numbers, this notion subsumes the well-established notions of monogenic function and slice-monogenic function. Over…

Complex Variables · Mathematics 2024-06-10 Riccardo Ghiloni , Caterina Stoppato

We present new estimates for sums of the divisor function, and other similar arithmetic functions, in short intervals over function fields. (When the intervals are long, one obtains a good estimate from the Riemann hypothesis.) We obtain an…

Number Theory · Mathematics 2020-04-21 Will Sawin

We study the properties of special values of the modular functions obtained from Weierstrass P-function at imaginary quadratic points.

Number Theory · Mathematics 2015-04-21 Noburo Ishii , Maho Kobayashi

We study special values of a modular function $\Lambda$ which is one of generalized $\lambda$ functions. We show special values of $\Lambda$ at imaginary quadratic points are algebraic integers. Further we prove that $\Lambda$ and the…

Number Theory · Mathematics 2011-10-21 Noburo Ishii

We introduce a generalized index for certain meromorphic, unbounded, operator-valued functions. The class of functions is chosen such that energy parameter dependent Dirichlet-to-Neumann maps associated to uniformly elliptic partial…

Analysis of PDEs · Mathematics 2016-03-24 Jussi Behrndt , Fritz Gesztesy , Helge Holden , Roger Nichols