{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,24]],"date-time":"2026-03-24T18:34:10Z","timestamp":1774377250080,"version":"3.50.1"},"reference-count":8,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2007,6,16]],"date-time":"2007-06-16T00:00:00Z","timestamp":1181952000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/www.springer.com\/tdm"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Math. Program."],"published-print":{"date-parts":[[2009,8]]},"DOI":"10.1007\/s10107-007-0146-0","type":"journal-article","created":{"date-parts":[[2007,6,16]],"date-time":"2007-06-16T13:19:31Z","timestamp":1181999971000},"page":"3-25","source":"Crossref","is-referenced-by-count":25,"title":["Searching for critical angles in a convex cone"],"prefix":"10.1007","volume":"120","author":[{"given":"Alfredo","family":"Iusem","sequence":"first","affiliation":[]},{"given":"Alberto","family":"Seeger","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2007,6,16]]},"reference":[{"key":"146_CR1","doi-asserted-by":"crossref","first-page":"163","DOI":"10.1023\/A:1020209017701","volume":"24","author":"I.M. Bomze","year":"2002","unstructured":"Bomze I.M., De Klerk E. (2002). Solving standard quadratic optimization problems via linear, semidefinite and copositive programming. J. Glob. Optim. 24: 163\u2013185","journal-title":"J. Glob. Optim."},{"key":"146_CR2","doi-asserted-by":"crossref","first-page":"875","DOI":"10.1137\/S1052623401383248","volume":"12","author":"E. De Klerk","year":"2002","unstructured":"De Klerk E., Pasechnik D.V. (2002). Approximation of the stability number of a graph via copositive programming. SIAM J. Optim. 12: 875\u2013892","journal-title":"SIAM J. Optim."},{"key":"146_CR3","doi-asserted-by":"crossref","first-page":"599","DOI":"10.1002\/mana.200310380","volume":"279","author":"A. Iusem","year":"2006","unstructured":"Iusem A., Seeger A. (2006). Measuring the degree of pointedness of a closed convex cone: a metric approach. Mathematishe Nachrichten 279: 599\u2013618","journal-title":"Mathematishe Nachrichten"},{"key":"146_CR4","doi-asserted-by":"crossref","first-page":"501","DOI":"10.1007\/s10107-005-0626-z","volume":"104","author":"A. Iusem","year":"2005","unstructured":"Iusem A., Seeger A. (2005). On vectors achieving the maximal angle of a convex cone. Math. Program. 104: 501\u2013523","journal-title":"Math. Program."},{"key":"146_CR5","doi-asserted-by":"crossref","first-page":"245","DOI":"10.1590\/S0101-82052005000200006","volume":"24","author":"A. Iusem","year":"2005","unstructured":"Iusem A., Seeger A. (2005). Axiomatization of the index of pointedness for closed convex cones. Comput. Appl. Math. 24: 245\u2013283","journal-title":"Comput. Appl. Math."},{"key":"146_CR6","doi-asserted-by":"crossref","first-page":"351","DOI":"10.1007\/s101070050001","volume":"87","author":"J. Pe\u00f1a","year":"2000","unstructured":"Pe\u00f1a J., Renegar J. (2000). Computing approximate solutions for conic systems of constraints. Math. Program. 87: 351\u2013383","journal-title":"Math. Program."},{"key":"146_CR7","doi-asserted-by":"crossref","DOI":"10.1515\/9781400873173","volume-title":"Convex analysis","author":"R.T. Rockafellar","year":"1970","unstructured":"Rockafellar R.T. (1970). Convex analysis. Princeton University Press, New Jersey"},{"key":"146_CR8","doi-asserted-by":"crossref","DOI":"10.1007\/978-1-4613-8431-1","volume-title":"Lectures on polytopes","author":"G.M. Ziegler","year":"1995","unstructured":"Ziegler G.M. (1995). Lectures on polytopes. Springer, Heidelberg"}],"container-title":["Mathematical Programming"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/link.springer.com\/content\/pdf\/10.1007\/s10107-007-0146-0.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/link.springer.com\/article\/10.1007\/s10107-007-0146-0\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/link.springer.com\/content\/pdf\/10.1007\/s10107-007-0146-0","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,5,29]],"date-time":"2019-05-29T09:50:04Z","timestamp":1559123404000},"score":1,"resource":{"primary":{"URL":"http:\/\/link.springer.com\/10.1007\/s10107-007-0146-0"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2007,6,16]]},"references-count":8,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2009,8]]}},"alternative-id":["146"],"URL":"https:\/\/doi.org\/10.1007\/s10107-007-0146-0","relation":{},"ISSN":["0025-5610","1436-4646"],"issn-type":[{"value":"0025-5610","type":"print"},{"value":"1436-4646","type":"electronic"}],"subject":[],"published":{"date-parts":[[2007,6,16]]}}}