Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Daniel Vendrúscolo"'
Autor:
Daniel Vendrúscolo
Publikováno v:
Fixed Point Theory and Applications, Vol 2006 (2006)
We study Nielsen coincidence theory for maps between manifolds of same dimension regardless of orientation. We use the definition of semi-index of a class, review the definition of defective classes, and study the occurrence of defective root classes
Externí odkaz:
https://doaj.org/article/b8895106cf5746d89e1b903fec7756dd
Publikováno v:
Journal of Group Theory.
We say a group 𝐺 has property R ∞ R_{\infty} if the number R ( φ ) R(\varphi) of twisted conjugacy classes is infinite for every automorphism 𝜑 of 𝐺. For such groups, the R ∞ R_{\infty} -nilpotency degree is the least integer 𝑐 s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2a32bdcca44ee337fd40e2c80c51909
https://doi.org/10.1515/jgth-2022-0129
https://doi.org/10.1515/jgth-2022-0129
Autor:
Daniel Vendrúscolo
Publikováno v:
Biblioteca Digital de Teses e Dissertações da USP
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
Nesse trabalho apresentamos alguns resultados de localização de pontos fixos em poliedros obtidos por Helga Schimer. Abordamos também os mesmos problemas para coincidências, enunciando-os, sempre que possível, para complexos simpliciais e não a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a637e020e098a1569c0a13684102c4b4
https://doi.org/10.11606/d.45.1998.tde-20210729-015930
https://doi.org/10.11606/d.45.1998.tde-20210729-015930
Publikováno v:
Bull. Belg. Math. Soc. Simon Stevin 24, no. 4 (2017), 613-619
A Nielsen-Borsuk-Ulam number ($NBU(f,\tau)$) is defined for continuous maps $f:X\to Y$ where $X$ and $Y$ are closed orientable triangulable $n$-mani\-folds and $X$ has a free involution $\tau$. This number is a lower bound, in the homotopy class of $
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::575758f2493ab10b930eb42fe6365b2c
https://doi.org/10.36045/bbms/1515035010
https://doi.org/10.36045/bbms/1515035010
Publikováno v:
Hiroshima Math. J. 46, no. 3 (2016), 255-270
In this article we classify the free involutions of every torus semi-bundle Sol 3-manifold. Moreover, we classify all the triples $M, \tau, \mathbf{R}^n$, where $M$ is as above, $\tau$ is a free involution on $M$, and $n$ is a positive integer, for w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0df9af6ad5bf6ebfd5a6519b6bd52b1b
https://doi.org/10.32917/hmj/1487991621
https://doi.org/10.32917/hmj/1487991621
Publikováno v:
Publicationes Mathematicae Debrecen. 78:583-593
Let Sn be the n-dimensional sphere, A : Sn ! Sn the antipodal involution and Rn the n-dimensional euclidean space. The famous Borsuk�Ulam Theorem states that, if f : Sn ! Rn is any continuous map, then there exists a point x 2 Sn such that f(x) = f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d5e59f9232980f94667ce66bf9ffe60
https://doi.org/10.5486/pmd.2011.4793
https://doi.org/10.5486/pmd.2011.4793
Autor:
Daniel Vendrúscolo
Publikováno v:
Biblioteca Digital de Teses e Dissertações da USP
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
Nesse trabalho demonstramos alguns resultados sobre limitações para o índice de uma classe de Nielsen de coincidência de aplicações entre superfícies. Usando a definição de índice para o caso não orientável mostramos que quando o domínio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b274202abe6ef22049678a8bac807bb
Publikováno v:
Topology and its Applications. (18):3738-3745
This work uses Nielsen coincidence theory to discuss solutions for the geometric Borsuk–Ulam question. It considers triples (X,τ;Y) where X and Y are topological spaces and τ is a free involution on X, (X,τ;Y) satisfies the Borsuk–Ulam theorem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad91ff241e7ad621665f059dfcae52ca
Autor:
Daniel Vendrúscolo
Publikováno v:
Fixed Point Theory and Applications, Vol 2006, Iss 1, p 68513 (2006)
Fixed Point Theory and Applications, Vol 2006 (2006)
Fixed Point Theory and Applications, Vol 2006 (2006)
In this article we studied Nielsen coincidence theory for maps between manifolds of same dimension without hypotheses on orientation. We use the definition of semi-index of a class, we review the definition of defective classes and study the appearan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::06d8ede8e58c243811a8ca1b6bf81c6c
Publikováno v:
Revista Brasileira de Climatologia, Vol 13, Iss 0 (2014)
No Estado do Rio Grande do Sul (RS) o regime pluviométrico não é homogêneo, apresentando variabilidade espacial e temporal condicionadas às interações de diferentes mecanismos climáticos. Estas particularidades fazem surgir diferentes comport
Externí odkaz:
https://doaj.org/article/b27409bc69824445819564704a1785af