ARTICLES

Filter  
Active filters 0
Remove
  

Refine your searches by:

Collections
Mathematics
Computing
Technology
Education
Physical
Pure sciences
Research
Architecture and Urbanism
Literature
Languages
all records (63)

Languages
English
Spanish
Portuguese

Countries
USA
Brazil
Ukraine
Indonesia
Italy
Spain
Chile
Australia
Colombia
Cuba
all records (55)

Years
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
all records (24)

Filter  
 
861  Articles
1 of 87 pages  |  10  records  |  more records»
We prove that no 14-connected (resp. 30-connected) stably parallelizable manifold N30 (resp. N62) of dimension 30 (resp. 62) with the Arf-Kervaire invariant 1 can be smoothly embedded into R36 (resp. R83).

Background: one of the challenges of a teacher’s activity is to use, assimilate and adapt the available resources with which the functional teaching of a mathematical knowledge will be created. Objective: we are interested in the instrumentalization proce... see more

At present, the use of video cameras is not only limited to documenting events but is also used for surveillance systems. Changes in lighting that occur in the surveillance area is one of the problems that result in a false alarm on the surveillance syste... see more

Banach space operators acting on some fixed space X are considered. If two such operators A and B verify the condition A2=B2 and if A has nontrivial hyperinvariant subspaces, then B has nontrivial invariant subspaces. If A and B commute and satisfy a spec... see more

An approach to wideband beamformer with frequency invariant property is proposed by optimising the space-time two-dimensional finite impulse response (FIR) filters. Frequency invariant beam pattern brings some restrictions on frequency bandwith and filter... see more

El cociente de una variedad algebraica por acción de un grupo algebraico no siempre tiene estructura de variedad. El objetivo de este trabajo es describir un método para construir cocientes buenos en la geometría algebraica en el sentido de la Teoría de i... see more

Background: One of the great challenges for mathematics education in the 21st century is to alleviate the difficulties of students in the transition from arithmetic to algebra. There is already a consensus that there should not be a transition, as several... see more

Tendo em vista a importância que o conceito de modelização, advindo da Cibernética, possui para o pensamento de Iuri Lotman, este artigo visa discutir a maneira pela qual o raciocínio inerente ao procedimento modelizador se encontra presente numa das suas... see more

The method of invariant embedding for the solutions of boundary value problems yields an equivalent formulation to the initial boundary value problems by a system of Riccati operator differential equations. A combined technique based on invariant embeddin... see more

1 of 87 pages  |  10  records  |  more records»