{"id":85,"date":"2013-08-02T14:47:15","date_gmt":"2013-08-02T11:47:15","guid":{"rendered":"http:\/\/math.ubbcluj.ro\/~agratini\/?page_id=85"},"modified":"2025-04-28T09:56:19","modified_gmt":"2025-04-28T06:56:19","slug":"scientific-activity","status":"publish","type":"page","link":"https:\/\/math.ubbcluj.ro\/~agratini\/scientific-activity\/","title":{"rendered":"Scientific activity"},"content":{"rendered":"<p style=\"text-align: right; font-size: 11px;\"><i>Success consists of going from failure to failure without<br \/>\nloss of enthusiasm.<\/i> (Winston Churchill)<\/p>\n<h3><em><span style=\"color: #555;\"><b>The area of the scientific interest<\/b><\/span><\/em><\/h3>\n<ul>\n<li><b>Operator Theory <\/b>(positive operators, semigroups of operators);<\/li>\n<li><b>Approximation Theory <\/b>(Korovkin-type approximation theory, positive approximation processes).<b><\/b><\/li>\n<\/ul>\n<h3><span style=\"color: #555;\"><b><i>Participations conferences abroad<\/i><\/b><\/span><\/h3>\n<ul>\n<li>International Conference on Functional Analysis, Approximation Theory and Numerical Analysis, Matera, Italy, July 5-8, 2022.<\/li>\n<li>The 9th International Congress on Fundamental and Applied Sciences, ICFAS 2022, Istanbul, Turkey, June 27-30, 2022.<\/li>\n<li>International Conference <em>Recent Developments in Mathematical Analysis<\/em> on the occasion of Francesco Altomare 70th &#8216;s birthday, Bari, Italy, September 22 &#8211; 23, 2021.<\/li>\n<li>The 6<sup>th<\/sup> International Congress on Fundamental and Applied Sciences, ICFAS 2019, Tirana, Albania, June 18-20, 2019.<\/li>\n<li>The 5<sup>th<\/sup> International Congress on Fundamental and Applied Sciences, ICFAS 2018, Skopje, Macedonia, June 18-22, 2018.<\/li>\n<li>21st International Conference on Applied Mathematics, AMATH\u201916, Bern, Switzerland, 17 \u2013 19 December, 2016.<\/li>\n<li>International Symposium <em>The Real World is Complex<\/em>, Copenhagen, Denmark, August 26 \u2013 28, 2015.<\/li>\n<li>The 6<sup>th<\/sup> International Conference on Functional Analysis and Approximation Theory, Acquafredda di Maratea (PZ), Italy,\u00a0 September 24-30, 2009.<\/li>\n<li>MASSEE International Congress on Mathematics, MICOM 2006, Paphos, Cyprus, May 31-June 4, 2006.<\/li>\n<li>International Conference on Functional Analysis, Operator Theory and Applications,\u00a0\u00a0 Mondello (Palermo), Italy, September 19 &#8211; 25, 2005.<\/li>\n<li>The 5<sup>th<\/sup> International Conference on Functional Analysis and Approximation Theory, Acquafredda di Maratea (PZ), Italy, June 16-23, 2004.<\/li>\n<li>The 5<sup>th<\/sup> Joint Conference on Mathematics and Computer Science, Debrecen, Hungary, June 9-12, 2004.<\/li>\n<li>International Conference: Advances in Constructive Approximation, Vanderbilt University, Nashville, Tennessee, USA, May 14-17, 2003.<\/li>\n<li>The Tenth International Conference on Fibonacci Numbers and Their Applications, Northen Arizona University, Flagstaff, Arizona,\u00a0 USA, June 24-28, 2002.<\/li>\n<li>The 4<sup>th<\/sup> International Conference on Functional Analysis and Approximation Theory, Acquafredda di Maratea (PZ), Italy, September 22-28, 2000.<\/li>\n<li>Third Joint Conference on Mathematics and Computer Science, Visegrad, Hungary, June 9-12, 1999.<\/li>\n<li>The Eighth International Research Conference on Fibonacci Numbers and Their Applications, Rochester Institute of Technology, Rochester, New York, USA, June 22-26, 1998.<\/li>\n<\/ul>\n<h3><span style=\"color: #555;\">\u00a0<b><i>Invited speaker\/ Visiting Professor<\/i><\/b><\/span><\/h3>\n<ul>\n<li>3<sup>rd<\/sup> European Computing Conference (ECC), Crete Island, Greece, May 7 \u2013 9, 2024.<\/li>\n<li>8<sup>th<\/sup> International Conference Mathematical Models &amp; Computational Techniques in Science &amp; Engineering (MMCTSE), Athens, Greece, June 1 \u2013 3, 2024.<\/li>\n<li>The 2<sup>nd<\/sup> \u00a0International Conference on Mathematics and Computers in Science and Engineering, MACISE 2020, Madrid, Spain, January 18-20, 2020.<\/li>\n<li>The 12<sup>th<\/sup> International Conference on Approximation Theory and its Applications, 26 May \u2013 29 May, 2016, Sibiu.<\/li>\n<li>The 11<sup>th<\/sup> Joint Conference on Mathematics and Computer Science, 20 \u2013 22 May, 2016, Eger, Hungary.<\/li>\n<li>The 11<sup>th<\/sup> Romanian &#8211; German Seminar on Approximation Theory and its Applications, 29 May \u2013 1 June, 2014, Sibiu.<\/li>\n<li>Seminar of Estonian Doctoral School in Mathematics and Statistics, June 6, 2012, University of Tartu, Estonia.<\/li>\n<li>International Conference: Recent Developments in Functional Analysis and Approxima- Theory, September 22-24, 2011, Lecce, Italy.<\/li>\n<li>International Conference on Mathematical Sciences (ICMS), Nov. 23-27, 2010, Abant Izzet Baysal University of Bolu, Turkey.<\/li>\n<li>April 18 \u2013 May 8, 2009 and April 19 \u2013 May 8, 2010, visiting professor \u00a0The African University of Science and Technology (AUST), Abuja, Nigeria.\u00a0 <i>Lectures<\/i>: Mathematical \u00a0Statistics<\/li>\n<li>September 26 \u2013 October 2, 2008, visiting professor Tishreen University, Latakia, Syria.<\/li>\n<li>The 6<sup>th<\/sup> International Conference on Applied Mathematics, ICAM6, Sept. 18-21, 2008, Baia &#8211; Mare.<\/li>\n<li>The 12<sup>th<\/sup> International Conference on Applied Mathematics, Computer Science and Mechanics,\u00a0 September 10 &#8211; 13, 2008, B\u0103i\u015foara.<\/li>\n<li>June 28 \u2013 July 5, 2007, visiting professor \u00a0Ankara University, Turkey.<\/li>\n<li>International Conference of Mathematics and Informatics, ICMI45, Sept. 18 &#8211; 20, 2006, Bac\u0103u.<\/li>\n<li>June 1 \u2013 June 16, 2006, visiting professor<br \/>\nVienna University of Technology (VUT), in the frame CEI \u2013 Central European Initiative<br \/>\nUniversity Network Project. <i>Lectures<\/i>: Numerical Mathematics.<\/li>\n<\/ul>\n<h3><span style=\"color: #555;\">\u00a0<b><i>Coordinating international meetings<\/i><\/b><\/span><\/h3>\n<ul>\n<li>International Conference on <em>Numerical Analysis and Approximation Theory<\/em>Organized by the team of Numerical Calculus and Statistics, Department of Mathematics, Faculty of Mathematics and Computer Science, Babe\u015f-Bolyai University of Cluj-Napoca.<br \/>\n<table class=\"noborder\">\n<tbody>\n<tr>\n<td>First Edition:<\/td>\n<td>July 5 \u2013 8, 2006<\/td>\n<td>(NAAT2006)<\/td>\n<\/tr>\n<tr>\n<td>Second Edition:<\/td>\n<td>September 23 \u2013 26, 2010<\/td>\n<td>(NAAT2010)<\/td>\n<\/tr>\n<tr>\n<td>Third Edition:<\/td>\n<td>September 17 \u2013 20, 2014<\/td>\n<td>(NAAT2014)<\/td>\n<\/tr>\n<tr>\n<td>Fourth Edition:<\/td>\n<td>September 6 \u2013 9, 2018<\/td>\n<td>(NAAT2018)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n<li>Third Summer School on <em>Data Assimilation and its Applications<\/em> (SSDA2013)<br \/>\n<span style=\"margin-left: 30px;\">22th July \u2013 2nd August, 2013\u00a0<\/span>Organized by Delft University of Technology (TU), Netherlands; Dutch Organization for Applied Scientific Research (TNO), Netherlands; Department of Mathematics, Faculty of Mathematics and Computer Science, Babe\u015f-Bolyai University of Cluj-Napoca, Romania.<\/li>\n<\/ul>\n<h3><span style=\"color: #555;\">\u00a0<b><i>Member of the Editorial Board<\/i><\/b><\/span><\/h3>\n<ul>\n<li><a href=\"http:\/\/www.cs.ubbcluj.ro\/~studia-m\/index.php\/journal\" target=\"_blank\" rel=\"noopener noreferrer\">Studia Universitatis Babe\u015f-Bolyai, Mathematica<\/a>;<\/li>\n<li><a href=\"http:\/\/math.ubbcluj.ro\/~mathjour\/\" target=\"_blank\" rel=\"noopener noreferrer\">Mathematica (Cluj)<\/a>;<\/li>\n<li><a href=\"http:\/\/www.scirp.org\/journal\/OJDM\/\" target=\"_blank\" rel=\"noopener noreferrer\">Open Journal of Discrete Mathematics<\/a>;<\/li>\n<li><a href=\"http:\/\/ictp.acad.ro\/jnaat\/journal\" target=\"_blank\" rel=\"noopener noreferrer\">Journal of Numerical Analysis and Approximation Theory<br \/>\n<\/a>(formely <a href=\"http:\/\/ictp.acad.ro\/jnaat\/journal\" target=\"_blank\" rel=\"noopener noreferrer\">Revue d\u2019Analyse Num\u00e9rique et de Th\u00e9orie de l\u2019Approximation<\/a>);<\/li>\n<li><a href=\"http:\/\/www.josa.ro\/en\/\" target=\"_blank\" rel=\"noopener noreferrer\">Journal of Science and Arts<\/a><\/li>\n<\/ul>\n<h3><span style=\"color: #555;\"><b><i>Others\u00a0\u00a0\u00a0 <\/i><\/b><\/span><\/h3>\n<ul>\n<li>Member of the American Mathematical Society;<\/li>\n<li>Reviewer at Mathematical Reviews.<i>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0<\/i><i><\/i><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Success consists of going from failure to failure without loss of enthusiasm. (Winston Churchill) The area of the scientific interest Operator Theory (positive operators, semigroups of operators); Approximation Theory (Korovkin-type approximation theory, positive approximation processes). Participations conferences abroad International Conference<span class=\"ellipsis\">&hellip;<\/span><\/p>\n<div class=\"read-more\"><a href=\"https:\/\/math.ubbcluj.ro\/~agratini\/scientific-activity\/\">Read more &#8250;<\/a><\/div>\n<p><!-- end of .read-more --><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-85","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/math.ubbcluj.ro\/~agratini\/wp-json\/wp\/v2\/pages\/85","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/math.ubbcluj.ro\/~agratini\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/math.ubbcluj.ro\/~agratini\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/math.ubbcluj.ro\/~agratini\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/math.ubbcluj.ro\/~agratini\/wp-json\/wp\/v2\/comments?post=85"}],"version-history":[{"count":84,"href":"https:\/\/math.ubbcluj.ro\/~agratini\/wp-json\/wp\/v2\/pages\/85\/revisions"}],"predecessor-version":[{"id":1835,"href":"https:\/\/math.ubbcluj.ro\/~agratini\/wp-json\/wp\/v2\/pages\/85\/revisions\/1835"}],"wp:attachment":[{"href":"https:\/\/math.ubbcluj.ro\/~agratini\/wp-json\/wp\/v2\/media?parent=85"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}