Zobrazeno 1 - 10
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pro vyhledávání: '"Indefinite sum"'
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Akademický článek
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Autor:
Sarika Goyal
Publikováno v:
Mathematische Nachrichten. 292:2189-2202
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::111fe0507aa737f6f39e273e242136fb
https://doi.org/10.1002/mana.201800331
https://doi.org/10.1002/mana.201800331
Publikováno v:
Optimization. 67:55-65
In this paper, we consider the problem of minimizing an indefinite quadratic function subject to a single indefinite quadratic constraint. A key difficulty with this problem is its nonconvexity. Us...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1f4ec86439589ca6a67568656a7d680
https://doi.org/10.1080/02331934.2017.1388378
https://doi.org/10.1080/02331934.2017.1388378
Publikováno v:
Applied Mathematics Letters. 71:67-73
We consider a nonlinear Neumann problem driven by a nonhomogeneous differential operator and an indefinite potential. Using variational methods together with flow invariance arguments, we show that the problem has at least one nodal solution. The res
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ba84a7c4a06200648e96cebb2a633eb
https://doi.org/10.1016/j.aml.2017.03.015
https://doi.org/10.1016/j.aml.2017.03.015
Publikováno v:
Journal of Mathematical Sciences: Advances and Applications. 44:51-71
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a337b5b0011075ff9b86014e29b01756
https://doi.org/10.18642/jmsaa_7100121759
https://doi.org/10.18642/jmsaa_7100121759
Autor:
Antonio J. Ureña
Publikováno v:
Advanced Nonlinear Studies. 17:497-516
We construct a second-order equation x ¨ = h ( t ) / x p {\ddot{x}=h(t)/x^{p}} , with p > 1 {p>1} and the sign-changing, periodic weight function h having negative mean, which does not have periodic solutions. This contrasts with earlier results
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eed083f9d9fbf15f8ecbb59f3f4cfd2a
https://doi.org/10.1515/ans-2016-6017
https://doi.org/10.1515/ans-2016-6017
Autor:
M. Y. Ting
Publikováno v:
International Journal of Information and Education Technology. 7:380-384
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4853c97b65c404935c8d10237cdaee7d
https://doi.org/10.18178/ijiet.2017.7.5.898
https://doi.org/10.18178/ijiet.2017.7.5.898
Autor:
Yongqiang Fu, Bingliang Li
Publikováno v:
Applicable Analysis. 96:2852-2868
In this paper, we study the existence of positive solutions for the following Laplacian problem with indefinite nonlinearitywhere is a bounded domain and a(x) is a sign-changing function. For suitable conditions on a(x) and p, we prove: there exists
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b998caf3020554c459743c6b5c64c656
https://doi.org/10.1080/00036811.2016.1249861
https://doi.org/10.1080/00036811.2016.1249861
Publikováno v:
East Asian Journal on Applied Mathematics. 6:211-221
We consider perturbation bounds and condition numbers for a complex indefinite linear algebraic system, which is of interest in science and engineering. Some existing results are improved, and illustrative numerical examples are provided.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e49ba792a249e02772e5a6c22885ef0f
https://doi.org/10.4208/eajam.201015.140316a
https://doi.org/10.4208/eajam.201015.140316a