شیخ عبدالحق محدث دہلوی کی علمی خدمات، منہج واسلوب اورعوامی مقبولیت و اثرات؛ ایک تحقیقی جائزہ A Research Review of the Work of Sheikh Abdul Haq Muḥaddith Dehlavi, It’s Style, Public Populaity & Influence

Sheikh Abdul Haq Muḥaddith Dehlavi is one of the prominent muhaddithin of the Subcontinent. He has played an unforgettable role in the leadership of the Ummah. His writings consist of God's benevolence, justice, and solving People’s problems so that they can look at their defects and focus on building their lives. He discussed topics related to the nation; do not follow useless philosophy and false interpretations which do not benefit a common man. Along with the reformed works, He has also left behind a large collection on technical topics. He wrote books on important and technical topics such as Tafseer, Tajweed, Hadith, Beliefs, Jurisprudence, Sufism, Ethics, Actions, Philosophy, History, Biography, etc. Sheikh Abdul Haq Muhaddith Dehlavi has priority in teaching and publishing the knowledge of Hadith. In the context of the publication of the knowledge of hadith, his two commentaries Mishkwat al-Masabih, Ishaat al-Lamaat and Lamaat al-Tanqeeh, has a special place. In the said article, an introduction and methodological study of the work done by Sheikh Abdul Haq will be presented.

Dynamical Properties of Specific Black Holes

The present thesis comprises the study of three dynamical phenomenon such as thermal fluctuations, accretion and tidal forces of black holes/regular black holes. We consider the logarithmic corrected entropy in order to analyze the thermal fluctuations. We examine the effects of thermal fluctuations on a regular black hole of the non-minimal Einstein-Yang-Mill theory with gauge field of magnetic Wu-Yang type and a cosmological constant. We investigate the first law of thermodynamics in the presence of logarithmic corrected entropy and non-minimal regular black hole. Furthermore, we discuss the thermal fluctuation problem by utilizing the higher order corrected entropy. We examine the thermodynamical behavior of two well-known black holes such as Reissner-Nordström Anti de Sitter black hole with global monopole and f(R) black hole in the presence of higher order corrected entropy. We also discuss the accretion problem in two phases. In first phase, we analyze the accretion onto static spherically symmetric regular black holes for specific choices of the equation of state parameter. The underlying regular black holes are charged regular black holes using the Fermi-Dirac distribution, logistic distribution, non-linear electrodynamics, respectively, and Kehagias-Sftesos asymptotically flat regular black holes. In second phase, we develop the Hamiltonian dynamical system to tackle the accretion problem. We investigate the accretion of test fluids onto regular black holes such as Kehagias-Sftesos black hole and regular black holes with Dagum distribution function. We analyze the accretion process when different test fluids are falling onto these regular black holes. The behavior of fluid flow and the existence of sonic points is being checked for these regular black holes. Finally, we investigate the tidal forces occurring in a Kiselev black hole surrounded by radiation and dust fluids. We also solve the geodesic deviation equation for radially free-falling bodies toward Kiselev black hole. We explain the geodesic deviation vector graphically and point out the location of the event and Cauchy horizons for specific values of the radiation and dust parameters.