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This is an improved lower bound on the possible number of limit cycles that can bifurcate from a quintic planar Hamiltonian system under quintic perturbation.<\/jats:p>","DOI":"10.1142\/s0218127410025405","type":"journal-article","created":{"date-parts":[[2010,3,25]],"date-time":"2010-03-25T11:49:37Z","timestamp":1269517777000},"page":"63-70","source":"Crossref","is-referenced-by-count":4,"title":["AN IMPROVED LOWER BOUND ON THE NUMBER OF LIMIT CYCLES BIFURCATING FROM A QUINTIC HAMILTONIAN PLANAR VECTOR FIELD UNDER QUINTIC PERTURBATION"],"prefix":"10.1142","volume":"20","author":[{"given":"TOMAS","family":"JOHNSON","sequence":"first","affiliation":[{"name":"Department of Mathematics, Uppsala University, Box 480, 751 06 Uppsala, Sweden"}]},{"given":"WARWICK","family":"TUCKER","sequence":"additional","affiliation":[{"name":"Department of Mathematics, University of Bergen, Johannes Brunsgate 12, 5008 Bergen, Norway"}]}],"member":"219","published-online":{"date-parts":[[2012,5,2]]},"reference":[{"key":"rf1","volume-title":"Introduction to Interval Computations","author":"Alefeld G.","year":"1983"},{"key":"rf2","first-page":"1","volume":"1","author":"Arnol'd V. 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