Deprecated: $wgMWOAuthSharedUserIDs=false is deprecated, set $wgMWOAuthSharedUserIDs=true, $wgMWOAuthSharedUserSource='local' instead [Called from MediaWiki\HookContainer\HookContainer::run in /var/www/html/w/includes/HookContainer/HookContainer.php at line 135] in /var/www/html/w/includes/Debug/MWDebug.php on line 372
Sur la recherche des équations \(s = f(x, y, z, p, q)\) intégrables par la méthode de Darboux. - MaRDI portal

Deprecated: Use of MediaWiki\Skin\SkinTemplate::injectLegacyMenusIntoPersonalTools was deprecated in Please make sure Skin option menus contains `user-menu` (and possibly `notifications`, `user-interface-preferences`, `user-page`) 1.46. [Called from MediaWiki\Skin\SkinTemplate::getPortletsTemplateData in /var/www/html/w/includes/Skin/SkinTemplate.php at line 691] in /var/www/html/w/includes/Debug/MWDebug.php on line 372

Deprecated: Use of MediaWiki\Skin\BaseTemplate::getPersonalTools was deprecated in 1.46 Call $this->getSkin()->getPersonalToolsForMakeListItem instead (T422975). [Called from Skins\Chameleon\Components\NavbarHorizontal\PersonalTools::getHtml in /var/www/html/w/skins/chameleon/src/Components/NavbarHorizontal/PersonalTools.php at line 66] in /var/www/html/w/includes/Debug/MWDebug.php on line 372

Deprecated: Use of QuickTemplate::(get/html/text/haveData) with parameter `personal_urls` was deprecated in MediaWiki Use content_navigation instead. [Called from MediaWiki\Skin\QuickTemplate::get in /var/www/html/w/includes/Skin/QuickTemplate.php at line 131] in /var/www/html/w/includes/Debug/MWDebug.php on line 372

Sur la recherche des équations \(s = f(x, y, z, p, q)\) intégrables par la méthode de Darboux. (Q573356)

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scientific article; zbMATH DE number 2556948
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English
Sur la recherche des équations \(s = f(x, y, z, p, q)\) intégrables par la méthode de Darboux.
scientific article; zbMATH DE number 2556948

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    Sur la recherche des équations \(s = f(x, y, z, p, q)\) intégrables par la méthode de Darboux. (English)
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    1931
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    Ein durch ein Beispiel illustriertes Rezept, wie sich unter Umständen feststellen läßt, daß die partielle Differentialgleichung der Überschrift eine Invariante außer \(x\) und \(y\) \textit{nicht} besitzt.
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