{"id":16289,"date":"2022-01-17T01:53:38","date_gmt":"2022-01-16T23:53:38","guid":{"rendered":"https:\/\/www.aosr.ro\/ixaru-liviu\/"},"modified":"2022-01-17T01:53:38","modified_gmt":"2022-01-16T23:53:38","slug":"ixaru-liviu","status":"publish","type":"page","link":"https:\/\/www.aosr.ro\/en\/ixaru-liviu\/","title":{"rendered":"IXARU LIVIU"},"content":{"rendered":"

\"IXARUFull member<\/strong><\/p>\n

Prof. univ. dr., physicist, CS 1<\/strong><\/p>\n

Date and place of birth: April 30, 1942, R\u0103\u015fcani-B\u0103l\u0163i, Republic of Moldova<\/strong><\/p>\n

<\/strong><\/p>\n

Education:<\/strong> Faculty of Physics, University of Bucharest (1959-1964), theoretical physical specialization. Doctor of Science, theoretical physics (1973), with the thesis Approximate methods for solving the Schr\u00f6dinger equation.<\/em><\/p>\n

Professional activity:<\/strong> I scientific researcher at the Institute of Physics and Nuclear Engineering Bucharest (IFIN-HH), in the Department of Theoretical Physics; PhD supervisor at Univ. Bucharest; director of two international research projects (under bilateral inter-country agreements) and two national ones.<\/p>\n

Internships abroad: <\/strong>at least 3 months \/ year: International Center for Theoretical Physics, Trieste-Italy; Max Planck Institute in Kernphysik, Heidelberg \u2013 RFG (1969\u20131970); Institute of Theoretical Physics, University of Frankfurt \/ Main – RFG (1982); Manne Siegbahn Royal Institute of Technology, Stockholm – Sweden (1994, 1995); Department of Applied Mathematics and Computer Science, University of Gent-Belgium (three months \/ year in 1994-1999, one year in 2000 and 6 months in 2001); University of Leuven-Belgium (6 months in 2001). Short visits: (2-4 weeks \/ year): Dubna Unified Nuclear Research Institute (former USSR) (1970-1990), Debrecen Nuclear Research Institute (Hungary) (1992-1995). Seminars, lessons: Berlin, Munich, Kaiserslautern, Siegen (Germany), Dubna, Kiev (former USSR), St. Andrews, Daresbury, Durham, Belfast (UK), Trieste, Pisa, Naples (Italy) etc.<\/p>\n

Teaching activity:<\/strong> in the country: Faculty of Physics, Univ. Bucharest, IFIN-HH Bucharest; abroad: visiting professor at Univ. Frankfurt \/ Main, Fac. Physics, 1990-1991; Univ. Ghent (Belgium), Department of Applied Mathematics (Sept.-Dec. 1994; Oct.-Dec. 1995, Sept.-Dec. 1996); Univ. Salerno (Italy), Department of Numerical Analysis and Applied Mathematics (Apr.-July 1998; March-Apr.2003, May-June 2004, Oct. 2008-Apr. 2009); Univ. Belfast (UK), Department of Informatics (Jan.-June 2005); member of doctoral commissions in the country and abroad ,<\/strong> about 20 theses.<\/p>\n

Scientific results: <\/strong>new numerical methods for complex problems in physics, chemistry and technical sciences; formulation of the fractional perturbation method for solving the Schr\u00f6dinger equation; new formulas for numerical operations (differentiation, integration, solving differential equations, interpolation) on oscillatory functions; new computing codes included in major international scientific software libraries; new set of special functions for processing oscillator functions; the unitary theory of the formalism of exponential fitting; the expression of the error in the exponential fit; efficient calculation of Slater integrals in quantum mechanics.<\/p>\n

Publications:<\/strong> 3 books: Numerical methods for differential equations, with applications<\/em> , Academy Publishing House, Bucharest (1979), Numerical Methods for Differential Equations<\/em> , Reidel, Dordrecht-Boston-Lancaster (1984) and Exponential Fitting<\/em> (with G. Vanden Berghe), Kluwer Academic, Dordrecht-Boston-London (2004)); about 100 scientific articles, of which about 70 in ISI-listed journals; communications at at least 40 conferences in the country and abroad.<\/p>\n

Assessment of the activity:<\/strong> 1400 citations in the ISI database; foreign member of WOG; member of the Scientific Committee of some international scientific events: Special Functions and Differential Equations<\/em> , Madras (India) 1993, Highly Efficient Software for Numerical Operations on Oscillatory Functions<\/em> , Gent (Belgium) 2001, Numerical Approach of Oscillatory Functions<\/em> , Gent (Belgium) 2008 etc .; member of the editorial board of international journals: associate editor at Journal of Computational and Applied Mathematics<\/em> – impact factor 1.7, specialist editor at Computer Physics Communications<\/em> – impact factor 3.2; referent for: IMA Journal of Numerical Analysis, BIT, Numerical Algorithms, International Journal of Computer Mathematics, Numerische Mathematik, Journal of Computational Physics<\/em> etc .; over 200 papers; evaluator for projects at the Fulbright Foundation (USA) and EPSRC (UK).<\/p>\n

National Awards:<\/strong> Dragomir Hurmuzescu<\/em> Award of the Romanian Academy (1980); International: UK High End Computing Strategy Committee HPC<\/em> Award (2006), UK, London, with Prof. NS Scott and MP Scott (Belfast University) and Prof. C. Denis ( Pierre and Marie Curie University<\/em> , Paris) .<\/p>\n

Tributes<\/strong> : Tribute article<\/em> : B. Paternoster, Present state-of-the-art in Exponential Fitting. A Contribution Dedicated to Liviu Ixaru on his 70th Birthday<\/em>, Comput. Phys. Common. 183, 2499-2512<\/em> ( 2012<\/em> ); Tribute Symposium :<\/em> Numerical Methods and Computational Procedures for Special Problems in Physics and Chemistry, Dedicated to Prof. Liviu Ixaru to Celebrate His 70th Birthday, Kos (Greece) September 19-25, 2012.<\/p>\n

References:<\/strong> http:\/\/www.nipne.ro\/research\/awards\/<\/a> , http:\/\/www.theory.nipne.ro\/~ixaru\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Full member Prof. univ. dr., physicist, CS 1 Date and place of birth: April 30, 1942, R\u0103\u015fcani-B\u0103l\u0163i, Republic of Moldova Education: Faculty of Physics, University of Bucharest (1959-1964), theoretical physical specialization. Doctor of Science, theoretical physics (1973), with the thesis Approximate methods for solving the Schr\u00f6dinger equation. Professional activity: I scientific researcher at the Institute […]<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"inline_featured_image":false,"footnotes":""},"class_list":["post-16289","page","type-page","status-publish"],"yoast_head":"\nIXARU LIVIU - The Academy of Romanian Scientists<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.aosr.ro\/en\/ixaru-liviu\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"IXARU LIVIU - The Academy of Romanian Scientists\" \/>\n<meta property=\"og:description\" content=\"Full member Prof. univ. dr., physicist, CS 1 Date and place of birth: April 30, 1942, R\u0103\u015fcani-B\u0103l\u0163i, Republic of Moldova Education: Faculty of Physics, University of Bucharest (1959-1964), theoretical physical specialization. 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