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    Browsing Division of Physical and Mathematical Sciences by Title

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      • Observational Aspects Of Core Collapse Supernovae 

        Gurugubelli, Uday Kumar (2013-10-17)
        The discovery of several bright supernovae (SNe) in recent years has evoked a great deal of interest in these objects. The study of these objects are of importance not only as probes to the end stages of stellar evolution, ...
      • Observational Constraints on Global 21-cm Signal from the Epoch of Reionization 

        Singh, Saurabh
        One of the most promising probes of Cosmic Dawn (CD) and Epoch of Reionization (EoR) is the rest-frame global 21-cm signal of neutral hydrogen (HI) produced by the intergalactic medium (IGM) prior to the end of the EoR ...
      • Observational study of Core-Collapse Supernovae 

        Singh, Avinash
        The advent of dedicated surveys for studying transient events has invoked a great interest in the study of supernovae (SNe). The rate of discovery of SNe has hence gone up ten-fold relinquishing their diversity. SNe not ...
      • Observational study of decayless waves across different scales in the solar corona 

        Shrivastav, Arpit Kumar
        The long-standing problem of coronal heating focuses on probing sources that can continuously supply energy to sustain million-degree temperatures. Magnetohydrodynamic (MHD) waves play a crucial role because their dissipation ...
      • On an ODE Associated to the Ricci Flow 

        Bhattacharya, Atreyee (2018-04-18)
        We discuss two topics in this talk. First we study compact Ricci-flat four dimensional manifolds without boundary and obtain point wise restrictions on curvature( not involving global quantities such as volume and diameter) ...
      • On certain invariant measures for correspondences, their analysis, and an application to recurrence 

        Mahadeo, Londhe Mayuresh
        The aim of this dissertation is to analyse a certain class of dynamically interesting mea- sures arising in holomorphic dynamics that goes beyond the classical framework of maps. We study measures associated with semigroups ...
      • On commuting isometries and commuting isometric semigroups 

        Rastogi, Shubham
        This thesis consists of two parts- commuting isometries and commuting isometric semigroups. In the first part, we study the Taylor joint spectrum for a pair of commuting isometries in certain cases. We show that the joint ...
      • On Critical Points of Random Polynomials and Spectrum of Certain Products of Random Matrices 

        Annapareddy, Tulasi Ram Reddy (2018-07-30)
        In the first part of this thesis, we study critical points of random polynomials. We choose two deterministic sequences of complex numbers, whose empirical measures converge to the same probability measure in complex plane. ...
      • On existence and regularity of some complex Hessian equations on Kahler and transverse Kahler manifolds 

        Sivaram, P
        The thesis consists of two parts. In the first part of the thesis, we classify the convergence behaviour of rotationally symmetric solutions to the modified J-flow on the blow-up of the complex projective space at a ...
      • On Hypergeometric solutions of Feynman integrals using Mellin-Barnes Integrals with Applications 

        Banik, Sumit
        Experimental measurements of physical observables in particle colliders rely on high-precision theoretical calculations to validate the predictions of any theoretical model and detect signals of new physics. These theoretical ...
      • On regular subalgebras of symmetrizable Kac-Moody algebras and related combinatorics 

        Habib, Md Irfan
        In this thesis, we study two aspects of Kac-Moody algebras. One is to understand the subalgebras that can be embedded inside a Kac-Moody algebra as subalgebras generated by real root vectors. The other one is to explicitly ...
      • On some canonical metrics on holomorphic vector bundles over Kahler manifolds 

        Ghosh, Kartick
        This thesis consists of two parts. In the first part, we introduce coupled Kähler- Einstein and Hermitian-Yang-Mills equations. It is shown that these equations have an interpretation in terms of a moment map. We identify ...
      • On The Analytic Theory Of Explosions 

        Yogi, A M Nageswara (2012-05-31)
      • On the electrical transport of weak topological insulators and Weyl semimetals 

        Majhi, Kunjalata
        Topological insulators have garnered enormous amount of attention owing to their unique topological properties. The surface states protected by the topology of the system hold limitless potentials including topological ...
      • On the Geometry and Operator Theory of the Bidisc and the Symmetrized Bidisc 

        Biswas, Anindya
        This work is concerned with the geometric and operator theoretic aspects of the bidisc and the symmetrized bidisc. First we have focused on the geometry of these two do- mains. The symmetrized bidisc, a non-homogeneous ...
      • On the Kobayashi geometry of domains 

        Maitra, Anwoy
        In this thesis we study questions broadly related to the Kobayashi (pseudo)distance and (pseudo)metric on domains in ℂn. Specifically, we study the following subjects: Estimates for holomorphic images of subsets in convex ...
      • On The Magnetic And Magnetotransport Studies Of Cobaltates And Superconductor/ Ferromagnet Heterostructures 

        Samal, Debakanta (2011-06-30)
        The study of the co-existence of singlet superconductivity and ferromagnetism in bulk materials has been a long standing and intriguing problem in condensed matter physics since the superconductivity and ferromagnetism are ...
      • On the Nature Of Propagating MHD Waves In The Solar Atmosphere 

        Gupta, Girjesh R (2014-10-15)
        One of the most persistent problem in solar physics is the identification of the mechanism that heats the solar corona and accelerates the fast solar wind. Magneto-hydrodynamic (MHD)waves play a crucial role in heating of ...
      • On The Peak-To-Average-Power-Ratio Of Affine Linear Codes 

        Paul, Prabal (2008-01-25)
        Employing an error control code is one of the techniques to reduce the Peak-to-Average Power Ratio (PAPR) in an Orthogonal Frequency Division Multiplexing system; a well known class of such codes being the cosets of ...
      • On The Role Of The Bargmann Transform In Uncertainty Principles 

        Garg, Rahul (2014-04-07)

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