Results 61 to 70 of about 657 (223)

Presentations of the Groups SL(2,m) And PSL(2,m)

open access: yes, 1972
In this paper, we refine the presentations of Behr and Mennicke [1] for SL(2,m)and PSL(2,m)wheremis odd. The group SL(2,m)is first shown to be presented by the following system of generators and relations:1.1The group PSL(2,m)appears as the factor group1.
J. G. Sunday
core   +1 more source

Multiobjective Codesign Optimization of a Planar Pneumatic Artificial Muscle‐Based Snake‐Like Robot for Enhanced Agility and Energy Efficiency

open access: yesAdvanced Robotics Research, EarlyView.
A codesign multiobjective optimization framework was developed to enhance the morphology and controller of a snake‐like robot driven by artificial muscles. It improved planar locomotion, agility, and power efficiency. The approach optimized link geometry and controller gains, revealing that shorter muscles near joints and longer linkages maximize ...
Ayla Valles, Mahdi Haghshenas‐Jaryani
wiley   +1 more source

On generators, relations and D-simplicity of direct products, Byleen extensions, and other semigroup constructions [PDF]

open access: yes, 2015
In this thesis we study two different topics, both in the context of semigroup constructions. The first is the investigation of an embedding problem, specifically the problem of whether it is possible to embed any given finitely presentable semigroup ...
Baynes, Samuel
core   +2 more sources

Numerical Modeling of Photothermal Self‐Excited Composite Oscillators

open access: yesAdvanced Robotics Research, EarlyView.
We present a numerical framework for simulating photothermal self‐excited oscillations. The driving mechanism is elucidated by highlighting the roles of inertia and overshoot, as well as the phase lag between the thermal moment and the oscillation angle, which together construct the feedback loop between the system state and the environmental stimulus.
Zixiao Liu   +6 more
wiley   +1 more source

Some group presentations with few defining relations [PDF]

open access: yes, 2018
We consider two classes of groups with two generators and three relations. One class has a similar presentation to groups considered in the paper by C.M. Campbell and R.M. Thomas, ‘On (2,n)-Groups related to Fibonacci Groups’, (Israel J. Math., 58), with
Gill, David Michael
core   +2 more sources

Flexible Sensors for Robotics Tactile Perception: A Review

open access: yesAdvanced Robotics Research, EarlyView.
Flexible tactile sensing for robotics is reviewed through four interconnected dimensions. Physical mechanisms include piezoresistive, capacitive, piezoelectric, triboelectric, iontronic, and optical sensing. Structural design includes bioinspired, defect‐based, and MEMS‐based tactile systems.
Yu Song, Ying Chen, Yihao Chen, Xue Feng
wiley   +1 more source

π 1 of Miranda moduli spaces of elliptic surfaces. [PDF]

open access: yesBoll Unione Mat Ital (2008), 2022
Lönne M.
europepmc   +1 more source

Deep Contrastive Learning for High‐Throughput Prediction of Drug Resistance Mutations from Sequences

open access: yesAdvanced Science, EarlyView.
This study presents DeepMutDTA, a deep learning framework aimed at predicting mutation‐induced changes in protein‐drug interactions and prioritizing variants potentially linked to drug resistance. Trained on large‐scale data, it incorporates SimSiam‐MuTF, a label‐aware contrastive fine‐tuning strategy that encourages separation between WT and MT ...
Xiaowen Hu   +7 more
wiley   +1 more source

On the number of defining relations for nonfibered kaehler groups [PDF]

open access: yes, 1999
We present minimal bounds for the deficiency (least difference between numbers of generators and relations among all presentations of a group) of fundamental groups of quasiprojective manifolds which do not fiber over a curve. The bound is derived from a
Bauer-Catanese, Ingrid   +1 more
core   +1 more source

A Combinatorial Generalisation of Rank two Complex Reflection Groups via Generators and Relations

open access: yes
Complex reflection groups of rank two are precisely the finite groups in the family of groups that we call virtual complex reflection groups of rank two. These groups are particular cases of $J$-groups as defined by Achar \& Aubert in ['On rank 2 complex
Haladjian, Igor
core   +1 more source

Home - About - Disclaimer - Privacy