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The study of ordering polytopes has been essential to the solution of various challenging combinatorial optimization problems. For instance, the incorporation of facet defining inequalities (FDIs) from these polytopes in branch-and-cut…

Combinatorics · Mathematics 2021-03-26 Adolfo R. Escobedo , Romena Yasmin

We show that first-order logic can be translated into a very simple and weak logic, and thus set theory can be formalized in this weak logic. This weak logical system is equivalent to the equational theory of Boolean algebras with three…

Logic · Mathematics 2011-11-07 H. Andréka , I. Németi

In this dissertation, we explore the structure of inversion graphs of permutations--a class of graphs that naturally arises by representing each permutation as a graph, where vertices correspond to entries and edges encode inversions.…

Combinatorics · Mathematics 2025-06-30 Sean Mandrick

The concept of open weak CAD is introduced. Every open CAD is an open weak CAD. On the contrary, an open weak CAD is not necessarily an open CAD. An algorithm for computing projection polynomials of open weak CADs is proposed. The key idea…

Symbolic Computation · Computer Science 2019-03-28 Jingjun Han , Liyun Dai , Hoon Hong , Bican Xia

We study the weak finite element method solving convection-diffusion equations. A weak finite element scheme is presented based on a spacial variational form. We established a weak embedding inequality that is very useful in the weak finite…

Numerical Analysis · Mathematics 2015-06-10 Tie Zhang , Yanli Chen

We prove collective versions of semi-duality theorems for sets of almost (limitedly, order) L-weakly compact operators.

Functional Analysis · Mathematics 2024-10-29 Safak Alpay , Eduard Emelyanov , Svetlana Gorokhova

We study classes of objects whose combinatorics are closely related to those of posets. The framework of operads and operad algebras allows us to make this relationship precise and provides tools for a deeper understanding of their…

Combinatorics · Mathematics 2026-04-28 José Antonio Arciniega-Nevárez , Marko Berghoff , Eric Rubiel Dolores-Cuenca

We construct bases for the spaces of higher order modular forms of all orders and weights. We also provide a cohomological interpretation of these forms.

Number Theory · Mathematics 2007-09-24 David Sim

The usual combinatorial model for the 0-Hecke algebra of the symmetric group is to consider the algebra (or monoid) generated by the bubble sort operators. This construction generalizes to any finite Coxeter group W. The authors previously…

Combinatorics · Mathematics 2011-02-07 Florent Hivert , Anne Schilling , Nicolas M. Thiéry

We establish a consistency result by comparing two independent notions of generalised solutions to a large class of linear hyperbolic first order PDE systems with constant coefficients, showing that they eventually coincide. The first is…

Analysis of PDEs · Mathematics 2018-01-25 Nikos Katzourakis

A permutation representation of a Coxeter group $W$ naturally defines an absolute order. This family of partial orders (which includes the absolute order on $W$) is introduced and studied in this paper. Conditions under which the associated…

Combinatorics · Mathematics 2013-03-08 Christos A. Athanasiadis , Yuval Roichman

We consider a definition of a weakly convex set which is a generalization of the notion of a weakly convex set in the sense of Vial and a proximally smooth set in the sense of Clarke, from the case of the Hilbert space to a class of Banach…

Functional Analysis · Mathematics 2010-07-02 Maxim V. Balashov , Dušan Repovš

We present an introduction to some of the state of the art in reduced order and surrogate modeling in gravitational wave (GW) science. Approaches that we cover include Principal Component Analysis, Proper Orthogonal Decomposition, the…

General Relativity and Quantum Cosmology · Physics 2022-05-04 Manuel Tiglio , Aarón Villanueva

Based on the novel notion of `weakly counital fusion morphism', regular weak multiplier bimonoids in braided monoidal categories are introduced. They generalize weak multiplier bialgebras over fields and multiplier bimonoids in braided…

Category Theory · Mathematics 2019-07-08 Gabriella Böhm , José Goméz-Torrecillas , Stephen Lack

We study a new type of higher categorical structure, called weakly globular n-fold category, previously introduced by the author. We show that this structure is a model of weak n-categories by proving that it is suitably equivalent to the…

Category Theory · Mathematics 2016-09-15 Simona Paoli

We investigate weak$^*$ derived sets, that is the sets of weak$^*$ limits of bounded nets, of convex subsets of duals of non-reflexive Banach spaces and their possible iterations. We prove that a dual space of any non-reflexive Banach space…

Functional Analysis · Mathematics 2021-11-29 Zdeněk Silber

The representation of discrete, compact wavelet transformations (WTs) as circuits of local unitary gates is discussed. We employ a similar formalism as used in the multi-scale representation of quantum many-body wavefunctions using unitary…

Quantum Physics · Physics 2018-05-14 Glen Evenbly , Steven R. White

By following the ideas underpinning the well-established ``homogeneous model'' of an $n$-dimensional Euclidean space, we investigate whether the motion group or the weak motion group of an $n$-dimensional affine metric space on a vector…

Metric Geometry · Mathematics 2023-12-08 Hans Havlicek

We begin a systematic study of unitary representations of minimal $W$-algebras. In particular, we classify unitary minimal $W$-algebras and make substantial progress in classification of their unitary irreducible highest weight modules. We…

Representation Theory · Mathematics 2023-07-03 Victor G. Kac , Pierluigi Möseneder Frajria , Paolo Papi

We study optimal simple second-order cone representations (a particular subclass of second-order cone representations) for weighted geometric means, which turns out to be closely related to minimum mediated sets. Several lower and upper…

Optimization and Control · Mathematics 2024-02-01 Jie Wang