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We consider the complex reflection group \( \mathcal{G} \), identified as No. 8 in the Shephard-Todd classification. In this paper, we present computations of the vector-valued invariants associated with various representations of \(…

Rings and Algebras · Mathematics 2025-08-22 A. K. M. Selim Reza , Manabu Oura , Masashi Kosuda , Shoyu Nagaoka

Using the language of vertex operator algebras (VOAs) and vector-valued modular forms we study the modular group representations and spaces of 1-point functions associated to intertwining operators for Virasoro minimal model VOAs. We…

Quantum Algebra · Mathematics 2016-12-09 Matthew Krauel , Christopher Marks

In this paper we compute explicitly the norm of the vector-valued holomorphic discrete series representations, when its $K$-type is "almost multiplicity-free." As an application, we discuss the properties of highest weight modules, such as…

Representation Theory · Mathematics 2015-06-22 Ryosuke Nakahama

We sharpen the construction of representation space in the paper "Principal Series Representations of Infinite Dimensional Lie Groups II: Construction of Induced Representations". We show that the principal series representation spaces…

Representation Theory · Mathematics 2012-10-22 Gestur Olafsson , Joseph A. Wolf

We study modular forms of some congruence subgroups. In this paper, we treat the cases level is 2-power, 3-power or 5. Structures of graded rings and many identities of infinite sum or infinite product are given. Theory of rational (1/3,…

Number Theory · Mathematics 2020-09-01 Suda Tomohiko

An important problem in the representation theory of affine and toroidal Lie algebras is to classify all possible irreducible integrable modules with finite dimensional weight spaces. Recently the irreducible integrable modules having…

Representation Theory · Mathematics 2021-01-13 Souvik Pal

We show how to use divisors on the projectivized Hodge bundle to construct special vector-valued modular forms and then apply invariant theory to construct all vector-valued Siegel modular forms of level two and degree two. Thus we…

Algebraic Geometry · Mathematics 2026-05-14 Fabien Cléry , Gerard van der Geer

For every positive integral level $k$ we study arithmetic properties of certain holomorphic modular forms associated to modular invariant spaces spanned by graded dimensions of $L_{\hat{sl_2}}(k \Lambda_0)$-modules. We found a necessary and…

Quantum Algebra · Mathematics 2007-05-23 Antun Milas

An MV-module is an MV-algebra endowed with a scalar multiplication with scalars in a PMV-algebra (i.e. an MV-algebra endowed with a binary "ring-like" product). We investigate the class of semisimple MV-modules over a semisimple and totally…

Logic · Mathematics 2015-04-28 Serafina Lapenta

We use the description of the Picard modular surface for discriminant $-3$ as a moduli space of curves of genus $3$ to generate all vector-valued Picard modular forms from bi-covariants for the action of ${GL}_2$ on the space of pairs of…

Algebraic Geometry · Mathematics 2022-03-01 Fabien Cléry , Gerard van der Geer

A vector space is commonly defined as a set that satisfies several conditions related to addition and scalar multiplication. However, for beginners, it may be hard to immediately grasp the essence of these conditions. There are probably a…

Rings and Algebras · Mathematics 2024-04-25 Kenji Nakahira

We show that certain spaces of vector valued modular forms are isomorphic to spaces of scalar valued modular forms whose Fourier coefficients are supported on suitable progressions. As an application we give a very explicit description of…

Number Theory · Mathematics 2007-05-23 Jan H. Bruinier , M. Bundschuh

This paper gives a simple method for constructing vector-valued Siegel modular forms from scalar-valued ones. The method is efficient in producing the siblings of Delta, the smallest weight cusp forms that appear in low degrees. It also…

Algebraic Geometry · Mathematics 2015-07-21 Fabien Cléry , Gerard van der Geer

We define and study a certain category of vector bundles on a p-adic curve to which we can associate in a functorial way finite dimensional p-adic representations of the geometric fundamental group. Among other things we investigate two…

Number Theory · Mathematics 2007-05-23 C. Deninger , A. Werner

This note offers an unusual approach of studying a class of modules inasmuch as it is investigating a subclass of the category of modules over a valuation domain. This class is far from being a full subcategory, it is not even a category.…

Commutative Algebra · Mathematics 2023-02-01 Peter Danchev , Laszlo Fuchs

We define formal vector bundles with marked sections on Hilbert modular schemes and we show how to use them to construct modular sheaves with an integrable meromorphic connection and a filtration which, in degree 0, gives to us a $p$-adic…

Algebraic Geometry · Mathematics 2020-08-03 Giacomo Graziani

We revisit the modular flavor symmetry from a more general perspective. The scalar modular forms of principal congruence subgroups are extended to the vector-valued modular forms, then we have more possible finite modular groups including…

High Energy Physics - Phenomenology · Physics 2022-04-13 Xiang-Gan Liu , Gui-Jun Ding

The main purpose of this paper is to give an explicit description of the moduli space of semistable sheaves of rank two on a stable curve C obtained by gluing two smooth curves at a point. We prove that the moduli space is irreducible and…

Algebraic Geometry · Mathematics 2025-09-11 Sukmoon Huh , Dongsun Lim , Sang-Bum Yoo

In this paper we generalise the notion of Drinfeld modular form for the group $\Gamma$ := GL2(Fq[$\theta$]) to a vector-valued setting, where the target spaces are certain modules over positive characteristic Banach algebras over which are…

Number Theory · Mathematics 2021-07-14 Federico Pellarin

Let ${\mathfrak{g}}$ be a complex semisimple Lie algebra with Borel subalgebra ${\mathfrak{b}}$ and corresponding nilradical ${\mathfrak{n}}$. We show that singular Whittaker modules $M$ are simple if and only if the space $\hbox{Wh}\,M$ of…

Representation Theory · Mathematics 2023-12-29 Karthik Dulam , Hrishikesh Ghate , Michael Lau , Suyash Pathak