Czesław Olech was a Polish mathematician. He was a representative of the Kraków school of mathematics, especially the differential equations school of Tadeusz Ważewski.
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{"type":"standard","title":"What in XXXTarnation","displaytitle":"What in XXXTarnation","namespace":{"id":0,"text":""},"wikibase_item":"Q62586477","titles":{"canonical":"What_in_XXXTarnation","normalized":"What in XXXTarnation","display":"What in XXXTarnation"},"pageid":70972177,"thumbnail":{"source":"https://upload.wikimedia.org/wikipedia/en/f/fc/What_in_XXXTarnation.jpeg","width":316,"height":316},"originalimage":{"source":"https://upload.wikimedia.org/wikipedia/en/f/fc/What_in_XXXTarnation.jpeg","width":316,"height":316},"lang":"en","dir":"ltr","revision":"1234596994","tid":"8872d452-4269-11ef-b67f-f639d5333f46","timestamp":"2024-07-15T05:17:30Z","description":"Single by XXXTentacion featuring Ski Mask the Slump God","description_source":"local","content_urls":{"desktop":{"page":"https://en.wikipedia.org/wiki/What_in_XXXTarnation","revisions":"https://en.wikipedia.org/wiki/What_in_XXXTarnation?action=history","edit":"https://en.wikipedia.org/wiki/What_in_XXXTarnation?action=edit","talk":"https://en.wikipedia.org/wiki/Talk:What_in_XXXTarnation"},"mobile":{"page":"https://en.m.wikipedia.org/wiki/What_in_XXXTarnation","revisions":"https://en.m.wikipedia.org/wiki/Special:History/What_in_XXXTarnation","edit":"https://en.m.wikipedia.org/wiki/What_in_XXXTarnation?action=edit","talk":"https://en.m.wikipedia.org/wiki/Talk:What_in_XXXTarnation"}},"extract":"\"What in XXXTarnation\" is a song by American rapper and singer XXXTentacion featuring fellow American rapper Ski Mask the Slump God. The song was released as a single for the Members Only mixtape Members Only, Vol. 3. It was produced by STAIN.","extract_html":"
\"What in XXXTarnation\" is a song by American rapper and singer XXXTentacion featuring fellow American rapper Ski Mask the Slump God. The song was released as a single for the Members Only mixtape Members Only, Vol. 3. It was produced by STAIN.
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