Results 41 to 50 of about 285,292 (271)

Diffeomorphisms as quadratic charges in 4d BF theory and related TQFTs

open access: yesJournal of High Energy Physics, 2023
We present a Sugawara-type construction for boundary charges in 4d BF theory and in a general family of related TQFTs. Starting from the underlying current Lie algebra of boundary symmetries, this gives rise to well-defined quadratic charges forming an ...
Marc Geiller   +3 more
doaj   +1 more source

Unified Strategy for Fault-Tolerant Operation of MMC with Multiple SMs Failure Based on SMs Grouping Management

open access: yesEnergies, 2022
Modular multilevel converter (MMC) is distinguished by its modularity. In order to improve its reliability and avoid unscheduled maintenance, it requires the MMC to continue operating even though some of its submodules (SMs) have failed. In this paper, a
Zhihong Bai, Yifei Li
doaj   +1 more source

On vector spaces of certain modular forms of given weights: Addendum [PDF]

open access: yesBulletin of the Australian Mathematical Society, 1982
The statement used in proving Theorem 2 of [1] needs explanation. This was pointed out to us by Professor S. Raghwan of Tata Institute of Fundamental Research, Bombay, and we gave the explanation of this in [2]. For the sake of completeness we give here the full proof of the theorem; filling the gap in the proof.
Aggarwal, A. R., Agrawal, M. K.
openaire   +1 more source

Freely acting orbifolds of type IIB string theory on T 5

open access: yesJournal of High Energy Physics, 2023
We study freely acting orbifolds of type IIB string theory on T 5 that spontaneously break supersymmetry from N $$ \mathcal{N} $$ = 8 to N $$ \mathcal{N} $$ = 6, 4, 2 or 0 in five dimensions.
George Gkountoumis   +3 more
doaj   +1 more source

t-modular spaces

open access: yesTikrit Journal of Pure Science
In the current study, a new modular type   which is called t-modular is defined. Some properties are given and proven, the vector space  is defined, namely t-modular space with a norm function on  being ...
Safa Shakir
doaj   +1 more source

A Study on Common Mode Voltage Reduction Strategies According to Modulation Methods in Modular Multilevel Converter

open access: yesEnergies, 2021
Low level modular multilevel converter (MMC) is a promising candidate for medium voltage applications such as MVDC (medium voltage DC current) transmission and megawatt machine drives.
Chang-Hwan Park   +4 more
doaj   +1 more source

Modular Zeros

open access: yesPhysics Letters B
Modular symmetries are known to be powerful and have various remarkable properties. We point out that the structure of vector-valued modular forms (VVMFs) space leads to the absence of couplings which cannot be explained in terms of the usual symmetries.
Xiang-Gan Liu, Michael Ratz
doaj   +1 more source

A Complex Structure for Two-Typed Tangent Spaces

open access: yesEntropy
This study concerns Riemannian manifolds with two types of tangent vectors. Let it be given that there are two subspaces of a tangent space with the property that each tangent vector has a unique decomposition as the sum of a vector in one subspace and a
Jan Naudts
doaj   +1 more source

Linear map preserving modular frames

open access: yesNonlinear Analysis
A frame can be thought of as a redundant coordinate system in the sense that it can contain more vectors that are necessary to represent each vector in a Hilbert space.
Salah Eddine Oustani, Choonkil Park
doaj   +1 more source

Golgi enzymes are retrieved from the plasma membrane to the trans‐Golgi network

open access: yesFEBS Letters, EarlyView.
Golgi enzymes are traditionally considered resident proteins retained within the Golgi apparatus. Here, we demonstrate that a subset transiently reaches the cell surface and is subsequently retrieved to the trans‐Golgi network via retrograde transport. Using a nanobody‐based toolkit, we uncover a dynamic trafficking cycle of several Golgi enzymes.
Dominik P. Buser, Tina Junne
wiley   +1 more source

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