Results 31 to 40 of about 469,615 (274)

Fusion systems [PDF]

open access: yes, 2016
This is a survey article on the theory of fusion systems, a relatively new area of mathematics with connections to local finite group theory, algebraic topology, and modular representation theory.
Aschbacher, Michael, Oliver, Bob
core   +1 more source

Efficient modelling of natural gas pipeline on electromagnetic transient simulation programs

open access: yesIET Renewable Power Generation, Volume 17, Issue 1, Page 186-198, 6 January 2023., 2023
Abstract Electromagnetic transient programs (EMTPs) are widely used for simulating electromagnetic transient in power systems. With the increasing interest in integrated energy system (IES), it would be beneficial to extend the scope of EMTP‐type application to multi‐physics transients in integrated electrical and gas networks.
Ruikai Song   +6 more
wiley   +1 more source

Point-Set Topology [PDF]

open access: yesarXiv, 2022
This is a review of the fundamental concepts of general topology.
arxiv  

An experimental realization of improved grid integrated multilevel inverter based PV systems with MPPT

open access: yesIET Renewable Power Generation, EarlyView., 2022
This research work explains a sliding mode controller‐based multilevel inverter for grid integrated photovoltaic (PV) power structure. A gravitational search algorithm (GSA) based on maximum power point tracking (MPPT) has also been discussed for optimal PV power achievement.
Neeraj Priyadarshi   +4 more
wiley   +1 more source

Algebraic Groups [PDF]

open access: yes, 2017
Linear algebraic groups is an active research area in contemporary mathematics. It has rich connections to algebraic geometry, representation theory, algebraic combinatorics, number theory, algebraic topology, and differential equations.

core   +2 more sources

A stability conjecture for the unstable cohomology of SL_n Z, mapping class groups, and Aut(F_n)

open access: yes, 2013
In this paper we conjecture the stability and vanishing of a large piece of the unstable rational cohomology of SL_n Z, of mapping class groups, and of Aut(F_n).Comment: 18 pages. v2: final version, to appear in Algebraic Topology: Applications and New
Church, Thomas   +2 more
core   +1 more source

Separating Topological Noise from Features Using Persistent Entropy [PDF]

open access: yes, 2016
Topology is the branch of mathematics that studies shapes and maps among them. From the algebraic definition of topology a new set of algorithms have been derived.
Atienza Martínez, María Nieves   +2 more
core   +1 more source

Cross-sections of unknotted ribbon disks and algebraic curves [PDF]

open access: yesCompositio Mathematica, 2018
We resolve parts (A) and (B) of Problem 1.100 from Kirby’s list [Problems in low-dimensional topology, in Geometric topology, AMS/IP Studies in Advanced Mathematics, vol.
Kyle Hayden
semanticscholar   +1 more source

Brandt extensions and primitive topological inverse semigroups [PDF]

open access: yesPublished in: International Journal of Mathematics and Mathematical Sciences 2010 (2010) Article ID 671401, 13 pages, 2010
In the paper we study (countably) compact and (absolutely) $H$-closed primitive topological inverse semigroups. We describe the structure of compact and countably compact primitive topological inverse semigroups and show that any countably compact primitive topological inverse semigroup embeds into a compact primitive topological inverse semigroup.
arxiv   +1 more source

From Music to Mathematics and Backwards: Introducing Algebra, Topology and Category Theory into Computational Musicology [PDF]

open access: yes, 2018
Despite a long historical relationship between mathematics and music, the interest of mathematicians is a recent phenomenon. In contrast to statistical methods and signal-based approaches currently employed in MIR (Music Information Research), the research project described in this paper stresses the necessity of introducing a structural ...
openaire   +3 more sources

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