{"id":5734,"date":"2017-03-30T20:57:27","date_gmt":"2017-03-30T18:57:27","guid":{"rendered":"https:\/\/marekkuchcinski.pl\/?p=5734"},"modified":"2017-03-31T12:24:59","modified_gmt":"2017-03-31T10:24:59","slug":"125-temu-urodzil-sie-stafan-banach-wybitny-polski-matematyk","status":"publish","type":"post","link":"https:\/\/marekkuchcinski.pl\/en\/wazne-daty\/125-temu-urodzil-sie-stafan-banach-wybitny-polski-matematyk\/","title":{"rendered":"125 years ago Stafan Banach was born, an outstanding Polish mathematician, the creator of functional analysis"},"content":{"rendered":"<p><strong>Stefan Banach (born March 30, 1892 in Cracow, died August 31, 1945 in Lviv) was a Polish mathematician, one of the representatives of the Lviv school of mathematics. He was the creator of functional analysis, a large and important branch of mathematics in modern applications, which helped to find equations used to describe complex natural phenomena, including quantum mechanics.<\/strong><\/p>\n<p>Member of the Polish Academy of Learning (1924), member-correspondent of the Academy of Sciences of the Ukrainian SSR (1940).<\/p>\n<p>Banach's first works dealt with Fourier series (in the first paper published jointly with Steinhaus he negatively solved the problem of convergence of the mean of partial sums of Fourier series), orthogonal functions and series, Maxwell's equations, derivative functions, measurable functions, measure theory. In his doctoral thesis (published in 1922) and in the monograph <i>Th\u00e9orie des op\u00e9rations lin\u00e9aires\u00a0<\/i>gave the first axiomatic definition of spaces, later named after him (Banach spaces), which he himself defined as <i>Type B spaces<\/i>. He finally established the foundations of functional analysis, which is extremely important in modern applications of mathematics. He gave its fundamental theorems and introduced its terminology, which has been accepted by mathematicians all over the world.<\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>Stefan Banach (ur. 30 marca 1892 w Krakowie, zm. 31 sierpnia 1945 we Lwowie) \u2013 polski matematyk, jeden z przedstawicieli lwowskiej szko\u0142y matematycznej. By\u0142 tw\u00f3rc\u0105 analizy funkcjonalnej, du\u017cego i wa\u017cnego w nowoczesnych zastosowaniach dzia\u0142u matematyki, kt\u00f3ry pom\u00f3g\u0142 znale\u017a\u0107 r\u00f3wnania stosowane do opisywania z\u0142o\u017conych zjawisk przyrodniczych, w tym mechaniki kwantowej. Cz\u0142onek Polskiej Akademii Umiej\u0119tno\u015bci (1924), cz\u0142onek-korespondent [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":5732,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[77],"tags":[],"class_list":["post-5734","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-wazne-daty"],"_links":{"self":[{"href":"https:\/\/marekkuchcinski.pl\/en\/wp-json\/wp\/v2\/posts\/5734","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/marekkuchcinski.pl\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/marekkuchcinski.pl\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/marekkuchcinski.pl\/en\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/marekkuchcinski.pl\/en\/wp-json\/wp\/v2\/comments?post=5734"}],"version-history":[{"count":3,"href":"https:\/\/marekkuchcinski.pl\/en\/wp-json\/wp\/v2\/posts\/5734\/revisions"}],"predecessor-version":[{"id":5746,"href":"https:\/\/marekkuchcinski.pl\/en\/wp-json\/wp\/v2\/posts\/5734\/revisions\/5746"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/marekkuchcinski.pl\/en\/wp-json\/wp\/v2\/media\/5732"}],"wp:attachment":[{"href":"https:\/\/marekkuchcinski.pl\/en\/wp-json\/wp\/v2\/media?parent=5734"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/marekkuchcinski.pl\/en\/wp-json\/wp\/v2\/categories?post=5734"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/marekkuchcinski.pl\/en\/wp-json\/wp\/v2\/tags?post=5734"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}