بررسی مشتقات جهتی و جزئی نگاشت های چند بعدی فازی تحت مشتق پذیری تعمیم یافته
محورهای موضوعی : آمارمحسن میری کرباسکی 1 , محمدرضا بلوچ شهریاری 2 , ام البنین صداقت فر 3
1 - گروه ریاضی، واحد شهیدحاج قاسم سلیمانی، دانشگاه آزاد اسلامی، کرمان، ایران
2 - گروه ریاضی، واحد شهیدحاج قاسم سلیمانی، دانشگاهآزاداسلامی، کرمان، ایران
3 - گروه ریاضی، واحد یادگار امام خمینی، دانشگاه آزاد اسلامی، تهران، ایران
کلید واژه: Directional generalized differentiability, Partial generalized differentiability, Multi-dimensional fuzzy mappings, n-dimensional fuzzy numbers, Total generalized differentiability,
چکیده مقاله :
مسائل مربوط به بهینه سازی فازی در مقالات اخیر با الهام از مفاهیم تفاضل هاکوهارای تعمیم یافته و مشتق پذیری هاکوهارای تعمیم یافته برای توابع یک بعدی از فضای R به توی E توسط نویسندگان زیادی مورد بحث قرار گرفته است و پیشرفت قابل ملاحظه ای داشته است. در این مقاله، مفهوم مشتق پذیری تعمیم یافته کلی با استفاده از تفاضل تعمیم یافته از فضای R^n به توی E برای نگاشت های چند بعدی فازی، معرفی شده است. همچنین مشتق پذیری تعمیم یافته کلی فوق مورد بررسی قرار گرفته شده است و در ادامه مفهوم مشتق پذیری تعمیم یافته جهتی و مشتق پذیری تعمیم یافته جزئی برای نگاشت های چند بعدی فازی تعریف و به تفصیل بحث شده است، سپس مشتق پذیری تعمیم یافته جهتی و مشتق پذیری تعمیم یافته جزئی برحسب مشتق پذیری تعمیم یافته سطح به سطح بیان شده است. همچنین خواص و ارتباط بین آنها بحث شده است. در نهایت روابط بین مشتق پذیری تعمیم یافته کلی، مشتق پذیری تعمیم یافته جهتی و مشتق پذیری تعمیم یافته جزئی برای نشان دادن توانایی و قابلیت روابط بین آنها با ذکر چند مثال نشان داده شده است.
Fuzzy optimization issues have been discussed by many authors in recent articles, inspired by the concepts of generalized Hukuhara difference and generalized Hukuhara differentiability for one-dimensional functions from R to E, and have made considerable progress. In this paper, the concept of total generalized differentiability is introduced by using the concept of generalized difference from R^n to E for multi-dimensional mappings. Furthermore, the total generalized differentiability of the above is also examined and then the concept of directional generalized differentiability and partial generalized differentiability for fuzzy multi-dimensional mappings is defined and discussed in detail. In addition, directional generalized differentiability and partial generalized differentiability are expressed in terms of level-wise generalized differentiability. Also, the properties and the relationship between them are discussed. Finally, the relationships between total generalized differentiability, directional generalized differentiability and partial generalized differentiability are shown to illustrate the power and ability of relationships between them by mentioning some examples.
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