Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Brendan Owens"'
Autor:
Joseph Roche, Laura Bell, Mairéad Hurley, Aaron M. Jensen, Eric A. Jensen, Brendan Owens, Grace D’Arcy, Jorge Rivero González, Pedro Russo
Publikováno v:
Frontiers in Education, Vol 6 (2021)
Space education not only plays a key role in helping young people understand the natural world and their impact on the planet but is also vital in ensuring that future generations can make meaningful contributions to the space sector at all levels. P
Externí odkaz:
https://doaj.org/article/0f1a1fef71c94e609934a2abec296fc7
Autor:
Joseph Roche, Laura Bell, Mairéad Hurley, Grace D’Arcy, Brendan Owens, Aaron M. Jensen, Eric A. Jensen, Jorge R. Gonzalez, Pedro Russo
Publikováno v:
Frontiers in Environmental Science, Vol 9 (2021)
The COVID-19 global pandemic has transformed the relationship between science and society. The ensuing public health crisis has placed aspects of this relationship in harsh relief; perceptions of scientific credibility, risk, uncertainty, and democra
Externí odkaz:
https://doaj.org/article/971290fe338e4ecda2f714f475dba2a4
Autor:
Brendan Owens, Sašo Strle
Publikováno v:
Canadian Journal of Mathematics. :1-44
This paper provides a convenient and practical method to compute the homology and intersection pairing of a branched double cover of the 4-ball. To projections of links in the 3-ball, and to projections of surfaces in the 4-ball into the boundary sph
Autor:
Brendan Owens, Frank Swenton
We describe an algorithm to find ribbon disks for alternating knots, and the results of a computer implementation of this algorithm. The algorithm is underlain by a slice link obstruction coming from Donaldson's diagonalisation theorem. It successful
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b3800485f97e2812365eb75eaf4acb1
Autor:
Brendan Owens
Publikováno v:
Winter Braids Lecture Notes. 6:1-1
Autor:
Brendan Owens
We exhibit an infinite family of rational homology balls which embed smoothly but not symplectically in the complex projective plane. We also obtain a new lattice embedding obstruction from Donaldson's diagonalisation theorem, and use this to show th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd22ce6de32264a73092187421b4486a
Autor:
Matthias Nagel, Brendan Owens
Publikováno v:
Bulletin of the London Mathematical Society. 47:964-979
We generalise theorems of Cochran-Lickorish and Owens-Strle to the case of links with more than one component. This enables the use of linking forms on double branched covers, Heegaard Floer correction terms, and Donaldson's diagonalisation theorem t
Autor:
Brendan Owens
We generalise theorems of Khodorovskiy and Park-Park-Shin, and give new topological proofs of those theorems, using embedded surfaces in the 4-ball and branched double covers. These theorems exhibit smooth codimension-zero embeddings of certain ratio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::75a1f8f6fc177b04349991f96641a76d
http://arxiv.org/abs/1707.00928
http://arxiv.org/abs/1707.00928
Autor:
Brendan Owens, Paolo Lisca
Publikováno v:
Proceedings of the American Mathematical Society. 143:907-914
Turaev showed that there is a well-defined map assigning to an oriented link L in the three-sphere a Spin structure t_0 on Sigma(L), the 2-fold cover of S^3 branched along L. We prove, generalizing results of Manolescu-Owens and Donald-Owens, that fo
Autor:
Saso Strle, Brendan Owens
Publikováno v:
American Journal of Mathematics. 134:891-913
We prove a generalization of Elkies' characterization of the ${\Bbb{Z}}^n$ lattice to nonunimodular definite forms (and lattices). Combined with inequalities of Fr{\o}yshov and of Ozsv\'{a}th and Szab\'{o}, this gives a simple test of whether a ratio