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We collect some classical results on the versal families of ordinary compact Riemann surfaces needed in `Versal Families of Compact Super Riemann Surfaces'.

Complex Variables · Mathematics 2012-08-23 Roland Knevel

We introduce the class of Cartan triples as a generalization of the notion of a Cartan MASA in a von Neumann algebra. We obtain a one-to-one correspondence between Cartan triples and certain Clifford extensions of inverse semigroups.…

Operator Algebras · Mathematics 2020-06-02 Allan P. Donsig , Adam H. Fuller , David R. Pitts

We introduce a broad class of equations that are described by a graph, which includes many well-studied systems. For these, we show that the number of solutions (or the dimension of the solution set) can be bounded by studying certain…

Combinatorics · Mathematics 2024-10-10 Eddie Nijholt , Davide Sclosa

Starting from the formulation of pseudo-Riemannian generalisation of real spectral triples we develop the data of geometries over finite-dimensional algebras with indefinite metric and their Riemannian parts. We then discuss the Standard…

High Energy Physics - Theory · Physics 2018-06-20 Arkadiusz Bochniak , Andrzej Sitarz

Family of replica matrices, related to general ultrametric spaces, is introduced. These matrices generalize the known Parisi matrices. Some functionals of replica approach are computed.

Disordered Systems and Neural Networks · Physics 2009-11-11 A. Yu. Khrennikov , S. V. Kozyrev

We construct spectral triples on C*-algebraic extensions of unital C*-algebras by stable ideals satisfying a certain Toeplitz type property using given spectral triples on the quotient and ideal. Our construction behaves well with respect…

Operator Algebras · Mathematics 2016-08-29 Andrew Hawkins , Joachim Zacharias

We introduce a simple method to extract the representation content of the spectrum of a system with SU(2) symmetry from its partition function. The method is easily generalized to systems with SO(2,4) symmetry, such as conformal field…

High Energy Physics - Theory · Physics 2009-11-13 Taylor H. Newton , Marcus Spradlin

Recently, Chach\'olski, Neeman, Pitsch, and Scherer studied, in a series of three papers, model approximations for the unbounded category of cochain complexes over a commutative ring. These approximations allow to construct relative…

K-Theory and Homology · Mathematics 2015-03-31 Simone Virili

We construct small resolutions of the moduli space $\overline{Q}_n$ of stable scaled $n$-marked lines of Ziltener and Ma'u--Woodward and of the moduli space $\overline{P}_n$ of stable $n$-marked ${\mathbb G}_a$-rational trees introduced in…

Algebraic Geometry · Mathematics 2026-01-01 Adrian Zahariuc

The correspondence between 2-parameter families of oriented lines in ${\Bbb{R}}^3$ and surfaces in $T{\Bbb{P}}^1$ is studied, and the geometric properties of the lines are related to the complex geometry of the surface. Congruences…

Differential Geometry · Mathematics 2008-11-19 Brendan Guilfoyle , Wilhelm Klingenberg

We give formulae for a module presentation of the module of identities among relations for a presentation of a group, in terms of information on 0- and 1-combings of the Cayley graph. This is seen as a special case of extending a partial…

Group Theory · Mathematics 2007-05-23 Ronald Brown , A. Razak Salleh

Dimensionally-regulated Feynman integrals are a cornerstone of all perturbative computations in quantum field theory. They are known to exhibit a rich mathematical structure, which has led to the development of powerful new techniques for…

High Energy Physics - Theory · Physics 2023-01-11 Samuel Abreu , Ruth Britto , Claude Duhr

We give a short proof of the convergence to the boundary of Riemann maps on varying domains. Our proof provides a uniform approach to several ad-hoc constructions that have recently appeared in the literature.

Complex Variables · Mathematics 2018-02-07 Jan Pel , Han Peters , Erlend Fornaess Wold

The purpose of this paper is to continue studying the properties of $\gamma$-regular open sets introduced and explored in [6]. The concept of $\gamma$-closed spaces have also been defined and discussed.

General Topology · Mathematics 2013-11-19 Sabir Hussain

In this note we will provide proofs for the various statements that have been made in the literature about blocking sets of index three. Our aim is to clarify what is known about the characterization of these sets. Specifically, we provide…

Combinatorics · Mathematics 2012-06-05 William E. Cherowitzo , Leanne D. Holder

The degree-diameter problem seeks to find the largest possible number of vertices in a graph having given diameter and given maximum degree. Very often the problem is studied for restricted families of graph such as vertex-transitive or…

Combinatorics · Mathematics 2018-04-13 Grahame Erskine , James Tuite

We consider mappings satisfying an upper bound for the distortion of families of curves. We establish lower bounds for the distortion of distances under such mappings. As applications, we obtain theorems on the discreteness of the limit…

Complex Variables · Mathematics 2024-11-07 Evgeny Sevost'yanov , Denys Romash , Nataliya Ilkevych

We attach a ring of sequences to each number from a certain class of extremal real numbers, and we study the properties of this ring both from an analytic point of view by exhibiting elements with specific behaviors, and also from an…

Number Theory · Mathematics 2013-01-07 Damien Roy , Eric Villani

We establish the equivalence between the family of closed uniformly regular Riemannian manifolds and the class of complete manifolds with bounded geometry.

Differential Geometry · Mathematics 2016-04-08 Marcelo Disconzi , Yuanzhen Shao , Gieri Simonett

In this note, we provide a generalization for the definition of a trisection of a 4-manifold with boundary. We demonstrate the utility of this more general definition by finding a trisection diagram for the Cacime Surface, and also by…

Geometric Topology · Mathematics 2020-08-24 José Román Aranda , Jesse Moeller