Results 21 to 30 of about 29,264 (279)

Topological Quantum Field Theory and the Geometric Langlands Correspondence [PDF]

open access: yes, 2013
In the pioneering work of A. Kapustin and E. Witten, the geometric Langlands program of number theory was shown to be intimately related to duality of GL-twisted N=4 super Yang-Mills theory compactified on a Riemann surface. In this thesis, we generalize
Setter, Kevin Luke
core   +1 more source

Generating functions for intersection products of divisors in resolved F-theory models

open access: yesNuclear Physics B, 2023
Building on the approach of 1703.00905, we present an efficient algorithm for computing topological intersection numbers of divisors in a broad class of elliptic fibrations with the aid of a symbolic computing tool.
Patrick Jefferson, Andrew P. Turner
doaj   +1 more source

On the topological theory of Group Equivariant Non-Expansive Operators [PDF]

open access: yes, 2021
In this thesis we aim to provide a general topological and geometrical framework for group equivariance in the machine learning context. A crucial part of this framework is a synergy between persistent homology and the theory of group actions.
Quercioli, Nicola <1992>
core   +1 more source

Interaction of a breather with a domain wall in a two-dimensional O(3) nonlinear sigma model [PDF]

open access: yesКомпьютерные исследования и моделирование, 2017
By numerical simulation methods the interaction processes of oscillating soliton (breather) with a 180-degree Neel domain wall in the framework of a (2 + 1)-dimensional supersymmetric O(3) nonlinear sigma model is studied. The purpose of this paper is to
Farkhod Shamsidinovich Shokirov
doaj   +1 more source

The Oblique Function Theory in search of a dynamic and fluid urban morphology

open access: yesJournal of Design for Resilience in Architecture and Planning, 2023
Today's cities are dynamic nodes where copious urban flows intersect. These flows have distinguished characteristics: the flow of money, the flow of vehicles, the flow of people who migrate, and the flow of information.
Ertuğ Erpek, Esin Kömez Dağlıoğlu
doaj   +1 more source

Disrupted grey matter network morphology in pediatric posttraumatic stress disorder

open access: yesNeuroImage: Clinical, 2018
Introduction: Disrupted topological organization of brain functional networks has been widely observed in posttraumatic stress disorder (PTSD). However, the topological organization of the brain grey matter (GM) network has not yet been investigated in ...
Running Niu   +9 more
doaj   +1 more source

Disrupted topological properties of functional networks in epileptic children with generalized tonic‐clonic seizures

open access: yesBrain and Behavior, 2020
Introduction Generalized tonic‐clonic seizure (GTCS) is a condition that is characterized by generalized spike‐wave discharge in bilateral cerebral hemispheres during the seizure.
Yongxin Li, Qian Chen, Wenhua Huang
doaj   +1 more source

Topological and Geometric Methods in Group Theory

open access: yesOberwolfach Reports, 2007
The focus of this meeting was the use of topological and geometric methods to study infinite discrete groups. These methods are increasingly being supplemented by powerful new techniques from analysis. Key topics included group actions on CAT(0) and tree-like spaces, filling invariants, cohomology, K-theory and
Martin R. Bridson   +2 more
openaire   +1 more source

Covering group theory for topological groups [PDF]

open access: yes, 2001
We develop a covering group theory for a large category of “coverable” topological groups, with a generalized notion of “cover”. Coverable groups include, for example, all metrizable, connected, locally connected groups, and even many totally ...
Conrad Plaut   +3 more
core   +1 more source

Altered whole-brain resting-state functional connectivity and brain network topology in typhoon-related post-traumatic stress disorder

open access: yesTherapeutic Advances in Psychopharmacology, 2023
Background: Altered resting-state functional connectivity has been found in patients with post-traumatic stress disorder (PTSD). However, the alteration of resting-state functional connectivity at whole-brain level in typhoon-traumatized individuals with
Hui Juan Chen   +8 more
doaj   +1 more source

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