Search or add a thesis

Advanced Search (Beta)
Home > Hermitian ricci tensor of twistor space

Hermitian ricci tensor of twistor space

Thesis Info

Author

Hafiza Rumlah Amer

Program

MS

Institute

Institute of Business Administration

Institute Type

Private

City

Karachi

Province

Sindh

Country

Pakistan

Thesis Completing Year

2019

Page

54

Subject

Mathematics

Language

English

Other

CallNo: 516.36

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676720938940

Similar


Twistor Space was first described by Roger Penrose and Malcolm MacCallum in the 1960s. Let (N, h) be an oriented Riemannian 4-manifold" then twistor space of (N, h) is the two-sphere subbundle W of A~T N which has an l-parameter family of Riemannian metric gr. The Ricci curvature of (W, gt) was defined in [9]. In [6], G. Deschamps defined almost complex (a.c) structures 3j on a manifold W of dimension 6 under a fiber preserving morphism j: W ---7 W of the bundle W such that n 0 j = Jr. The Ricci tensor of the twistor space of an almost Hermitian Riemannian 4-manifold was also discussed w.r.t an a.c structure. defined with the help of the morphism j: W ---7 Wand a sectionj3 E A2T N in [10] which is a particular case of the arbitrary morphism f. In this dissertation, I studied the Ricci tensor of (W, gt) and the conditions in which the Ricci tensor of twistor space with almost Hermitian base manifold is also Hermitian correspond to the a.c structure 5. Furthermore, we can also explore the conditions for the Ricci tensor of (W, gt) to be Hermitian corresponding to the complex structure 3) defined under an arbitrary fiber preserving map from the twistor space W to W
Loading...

Similar Thesis

Showing 1 to 20 of 100 entries
TitleAuthorSupervisorDegreeInstitute
MS
Institute of Business Administration, Karachi, Pakistan
MA
Quaid-i-Azam University, Islamabad, Pakistan
PhD
University of Peshawar, Peshawar, Pakistan
Mphil
Quaid-i-Azam University, Islamabad, Pakistan
MA
Quaid-i-Azam University, Islamabad, Pakistan
Mphil
Quaid-i-Azam University, Islamabad, Pakistan
BSM
COMSATS University Islamabad, Islamabad, Pakistan
PhD
COMSATS University Islamabad, Islamabad, Pakistan
Mphil
Quaid-i-Azam University, Islamabad, Pakistan
PhD
Quaid-i-Azam University, Islamabad, Pakistan
PhD
Quaid-I-Azam University, Islamabad, Pakistan
PhD
Quaid-I-Azam University, Islamabad, Pakistan
PhD
University of the Punjab, Lahore, Pakistan
Mphil
Quaid-i-Azam University, Islamabad, Pakistan
PhD
University of the Punjab, Lahore, Pakistan
Mphil
Quaid-i-Azam University, Islamabad, Pakistan
PhD
COMSATS University Islamabad, Islamabad, Pakistan
BAR
COMSATS University Islamabad, Islamabad, Pakistan
Mphil
Allama Iqbal Open University, Islamabad, Pakistan
Mphil
Quaid-i-Azam University, Islamabad, Pakistan
TitleAuthorSupervisorDegreeInstitute
Showing 1 to 20 of 100 entries

Similar Books

Loading...

Similar Chapters

Loading...

Similar News

Loading...

Similar Articles

Loading...

Similar Article Headings

Loading...

مولانا محمد اکبر ندوی

مولانا محمد اکبر ندوی
(پروفیسر مسعود حسن)
یہ خبر انتہائی افسوس کے ساتھی سنی جائے گی کہ مولانا محمد اکبر ندوی سابق ریڈر شعبہ عربی و فارسی کلکتہ یونیورسٹی ۱۵؍ رمضان المبارک ۱۴۰۰؁ھ کو صبح کے وقت ۳۰:۹ بجے اس دار فانی سے عالم جاودانی کو سدھارے۔ اناﷲ وَانا اِلیہ رَاجعُون۔ ان کی وفات سے مغربی بنگال میں عربی زبان کے ایک ممتاز ادیب ایک مستند عالم دین اور استادوں کے استاد کی جگہ خالی ہوگئی۔ راقم الحروف کے لیے ذاتی طور پر یہ حادثہ ایک بہت بڑا سانحہ ہے کیونکہ ان کی موت کے بعد اس کے اساتذہ میں اب کوئی زندہ نہیں رہا۔ اس کے مدرسہ، اسکول کالج اور یونیورسٹی کے استاد سب کے سب اﷲ کو پیارے ہوگئے۔ اس کی علمی رہنمائی کے لئے ایک آخری شمع رہ گئی تھی، موت نے اسے بھی چھین لیا۔
مولانا محمد اکبر ندوی کا وطن مالوف ناگپور تھا۔ مگر عرصہ سے ترک وطن کرکے کلکتے میں مقیم تھے۔ ان کی اعلیٰ تعلیم دارالعلوم ندوۃ العلماء میں ہوئی تھی، وہ مولانا مسعود عالم ندوی مرحوم کے ہم جماعت تھے، طالب علمی کے زمانے میں ان کی عربی خطابت اور عربی انشاء ندوہ میں مشہور تھی۔ فرماتے تھے کہ طلبہ کے ایک جلسے میں ان کی ایک عربی تقریر علامہ سید سلیمان ندویؒ کو اس قدر پسند آئی کہ انھوں نے جیب خاص سے انعام مرحمت فرمایا۔ عربی انشاء پردازی میں مسعود عالم صاحب سے ٹکر ہوتی تھی، ندوہ سے فراغت پاکر کلکتہ آگئے، اور اسلامیہ کالج سے بی۔ اے کیا۔ پھر کلکتہ یونیورسٹی سے عربی اور فارسی دونوں میں ایم اے کی ڈگری لی، اور ڈاکٹر محمد زبیر صدیقی مرحوم کے ارشد تلامذہ میں شمار ہونے لگے۔
مشرقی بنگال کے ایک بڑے کالج میں ایک بڑی اونچی جگہ ملی اور بڑی خوشامدیں ہوئیں، مگر اپنے استاد...

قرآن فہمی كے داخلی و خارجی اصول

The Proper approach to the Quran can be described in three stages: first, receive the message of the Quran by hearing or reading it Second: understanding the message of the Quran by reflecting upon it and studying its meaning third: apply the message of the Quran by ordering your personal life as well as the life of Society according to its message. The branch of Knowledge called "Ulum al Quran" my be used as a means for the accomplishment of the second stage, understanding the message of the Quran by understanding its setting and circumstances, Muslims have from earliest times, applied themselves not only to the message from Allah. The Quran, but also to its setting and framework, and the preoccupation with these ultimately developed into the "Knowledge" about the Quran. In this paper, there are a number of matters related to the study of the Quran to which / have drawn special attention, and also highlighted

Patterns of Fatal Gunshot Injuries in Nairobi: A Prospective Forensic Study

Introduction: Gunshot injuries are one of the leading causes of fatal and non fatal injury in many countries (1) .All over the world, injury studies show an increasing preference for the gun as the weapon of choice for homicides and suicides (2).Firearms are more lethal compared to other portable and concealable weapons (2). Gunshot injuries impact severely on the criminal justice as well as health care systems (3, 4). There is no available published statistics on fatal gunshot injuries inKenya. Some basic statistics are important in understanding the magnitude and severity of the socio-economic burden caused by gunshot injuries. Objective: To determine the patterns of fatal gunshot injuries inNairobi. Methods: A cross sectional prospective autopsy based study carried out between 1st June 2009 and 30th November 2009 at theNairobi city mortuary and at the medico legal unit, Ministry of Health – Government of Kenya. Consecutive postmortems were conducted to determine the patterns of fatal gunshot injuries on all victims of fatal gunshot injuries seen withinNairobi. Data was entered into SPSS database and analyzed using SPSS version 15. Results: One hundred and ninety four (194) fatal gun shot cases were consecutively sampled over a period of 6 months. Majority of the victims (65%) were in the 21 – 30 years age bracket with the youngest victim being 16 years old and the oldest victim being 75 years old. Males were the main victims comprising 99% of the fatalities. Criminals constituted 75.2% of the victims while Civilians constituted 17% and police officers 3.1 %.Most of the victims were shot by police officers (76.8%) while criminals executed 14.4% of the victims. Most of the bodies (63.4%) had more than 1 gunshot entry wound with one of the bodies having 14 gunshot entry wounds. Majority (51%) of the bodies had gunshot entry wounds over multiple anatomic sites with the head and chest as the main targets. 80.4% of the gunshot entry wounds were estimated to have been of medium range of firing. The reconstructed direction of firing showed that 36.1% of the bodies had a front to back direction of firing. 47.4% of the bodies had multiple vital organ injuries with the brain the single most injured organ (31.4%). The manner of death was mainly homicidal (99.0%) while suicidal and accidental each constituted 0.5% of the cases. Head and chest injury were the major causes of death constituting 54.6 %. Conclusion: There was a