On a generalization of quasi-injective modules : (Record no. 175124)
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| 000 -LEADER | |
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| fixed length control field | 04570namaa22004331i 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | OSt |
| 005 - أخر تعامل مع التسجيلة | |
| control field | 20251103103701.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 251021s2025 ua a|||frm||| 000 0 eng d |
| 040 ## - CATALOGING SOURCE | |
| Original cataloguing agency | EG-GICUC |
| Language of cataloging | eng |
| Transcribing agency | EG-GICUC |
| Modifying agency | EG-GICUC |
| Description conventions | rda |
| 041 0# - LANGUAGE CODE | |
| Language code of text/sound track or separate title | eng |
| Language code of summary or abstract | eng |
| -- | ara |
| 049 ## - Acquisition Source | |
| Acquisition Source | Deposit |
| 082 04 - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | 510 |
| 092 ## - LOCALLY ASSIGNED DEWEY CALL NUMBER (OCLC) | |
| Classification number | 510 |
| Edition number | 21 |
| 097 ## - Degree | |
| Degree | M.Sc |
| 099 ## - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Local Call Number | Cai01.12.17.M.Sc.2025.Hu.O |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Authority record control number or standard number | Hussein Eid Abdelgelil Elsawy, |
| Preparation | preparation. |
| 245 10 - TITLE STATEMENT | |
| Title | On a generalization of quasi-injective modules : |
| Remainder of title | c4-modules / |
| Statement of responsibility, etc. | by Hussein Eid Abdelgelil Elsawy ; Supervisors: Prof. Dr. Ahmad M. El-guindy, Dr. Laila M. Soueif. |
| 246 15 - VARYING FORM OF TITLE | |
| Title proper/short title | حول تعميم الموديولات شبه الحاقنة : |
| Remainder of title | موديولات C4 / |
| 264 #0 - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE | |
| Date of production, publication, distribution, manufacture, or copyright notice | 2025. |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 70 pages : |
| Other physical details | illustrations ; |
| Dimensions | 25 cm. + |
| Accompanying material | CD. |
| 336 ## - CONTENT TYPE | |
| Content type term | text |
| Source | rda content |
| 337 ## - MEDIA TYPE | |
| Media type term | Unmediated |
| Source | rdamedia |
| 338 ## - CARRIER TYPE | |
| Carrier type term | volume |
| Source | rdacarrier |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Sc)-Cairo University, 2025. |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE | |
| Bibliography, etc. note | Bibliography: pages 68-70. |
| 520 #3 - SUMMARY, ETC. | |
| Summary, etc. | The thesis is a contribution to the field of module theory. The thesis consists of three main chapters (Chapters 2, 3, and 4). In Chapter 2, we continue studying and investigat- ing the class of C4-modules introduced in [18]. We introduce and investigate thoroughly two new subclasses of C4-modules; namely, the classes of C4∗-modules and strongly C4∗- modules, showing that these two notions extend non-trivially the U ∗-modules, a notion introduced in [27] which in turn extends non-trivially the classes of a-modules, q-modules, and π-modules. In Chapter 3, we study when a module has a pseudo-continuous hull and a C4-hull (i.e., a minimal pseudo-continuous (resp., C4-) extension), where the class of pseudo-continuous modules is a proper subclass of that of C4-modules. Our work in this part is motivated by the works of Johnson and Wong in [35]; Goel and Jain in [21]; Birkenmeier, Park and Rizvi in [8]; and A. Alahmdi, S.K. Jain and A. Leroy in [1]. In Chapter 4, we give partial answers to the well-known open problem of Crawley and Jóns- son [16], which asks whether the finite exchange property of modules implies the full exchange property. |
| 520 #3 - SUMMARY, ETC. | |
| Summary, etc. | تعتبر هذه الرسالة إسهام فى نظرية التشكيلات. الرسالة مكونة من ثلاثة أبواب رئيسية ( الأبواب الثانى والثالث والرابع). فى الباب الثانى نستكمل دراسة وفحص فئة تشكيلات C4 المقدمة آنفًا فى المجال. سنقدم ونفحص جديًا فئتين جزئيتين من فئة تشكيلات C4 وهما فئة "تشكيلات C4^*" وفئة "تشكيلات C4^* القوية"، مبيّنًا أن هاتين المفهومين هما تعميمان غير تافهين لفئة "تشكيلات U^*" المقدمة آنفًا والتى بدورها تعتبر تعميم غير تافه لفئات "تشكيلات q" و "تشكيلات a" و "تشكيلات π". <br/>فى الباب الثالث ندرس متى يكون للتشكيل غطاء "متصل زائف" وغطاء C4 (نقصد بغطاء "متصل زائف" أصغر إمتداد "متصل زائف" للتشكيل ونقصد بغطاء C4 أصغر غطاء C4 للتشكيل)، حيث فئة التشكيلات المتصلة الزائفة هى فئة جزئية ولا تساوى فئة تشكيلات C4. تم تحفيز نتائجنا فى هذا الصدد من أعمال جونسون-وونج، جول-جين، بيركنماير-بارك-ريزفى، الأحمدى-جين-لوروى. <br/>فى الباب الرابع نعطى إجابات جزئية لمسألة كراولى-جونسون المفتوحة المشهورة حول ما إذا كانت خاصية التبادل المنتهية للتشكيلات تستلزم خاصية التبادل غير المنتهية. |
| 530 ## - ADDITIONAL PHYSICAL FORM AVAILABLE NOTE | |
| Issues CD | Issues also as CD. |
| 546 ## - LANGUAGE NOTE | |
| Text Language | Text in English and abstract in Arabic & English. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Mathematics |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | الرياضيات |
| 653 #1 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | C4∗-modules |
| -- | C4∗-rings |
| -- | directly-finite modules |
| -- | directly-finitely rings |
| -- | a-ring |
| -- | quasi-injective hull |
| -- | quasi-continuous hull |
| -- | pseudo-continuous hull |
| -- | C4-hull |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Ahmad M. El-guindy |
| Relator term | thesis advisor. |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Laila M. Soueif |
| Relator term | thesis advisor. |
| 900 ## - Thesis Information | |
| Grant date | 01-01-2025 |
| Supervisory body | Ahmad M. El-guindy |
| -- | Laila M. Soueif |
| Universities | Cairo University |
| Faculties | Faculty of Science |
| Department | Department of Mathematics |
| 905 ## - Cataloger and Reviser Names | |
| Cataloger Name | Shimaa |
| Reviser Names | Eman Ghareb |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Dewey Decimal Classification |
| Koha item type | Thesis |
| Edition | 21 |
| Suppress in OPAC | No |
| Source of classification or shelving scheme | Home library | Current library | Date acquired | Inventory number | Full call number | Barcode | Date last seen | Effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|
| Dewey Decimal Classification | المكتبة المركزبة الجديدة - جامعة القاهرة | قاعة الرسائل الجامعية - الدور الاول | 21.10.2025 | 92233 | Cai01.12.17.M.Sc.2025.Hu.O | 01010110092233000 | 21.10.2025 | 21.10.2025 | Thesis |