IIIT-Delhi Institutional Repository

Browsing PhD Theses by Title

Browsing PhD Theses by Title

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  • Khyati; Banerjee, Debika (Advisor) (IIIT-Delhi, 2025-07-04)
    Summation formulas play a vital role in analytic number theory. Several kinds of summation formulas exist, like the Poisson summation formula, Abel summation formula, Euler-Maclaurin formula, etc. In 1904, G. F. Voronoi ...
  • Sidana, Tania; Sharma, Anuradha (Advisor) (IIIT-Delhi, 2020-07)
    Constructing codes that are easy to encode and decode, can detect and correct many errors and have a sufficiently large number of codewords is the primary aim of coding theory. Several metrics (e.g. Hamming metric, Lee ...
  • Khurana, Divya; Banerjee, Shilpak (Advisor); Chaubey, Sneha (Advisor); Kunde, Philipp (Advisor) (IIITD, 2025-08)
    Ergodic theory often involves dealing with transformations of measure spaces that preserve specific measures, such as volume or probability measures. These transformations establish a framework for studying the behavior ...
  • Chauhan, Varsha; Sharma, Anuradha (Advisor) (IIIT-Delhi, 2021-01)
    Nowadays error-correcting codes are widely used in communication systems, returning pictures from deep space, designing registration numbers, and storage of data in memory systems. An important family of error-correcting ...
  • Roy, Sayantan; Basu, Sankha S. (Advisor); Chakraborty, Mihir K. (Advisor) (IIIT-Delhi, 2024-07-01)
    Universal logic, as described by Béziau, is a structural approach to logic which aims to unify the large kaleidoscopic variety of logics, while preserving their diversity. In order to do this, Béziau’s original proposal ...
  • Sharma, Sandeep; Sharma, Anuradha (Advisor) (IIIT-Delhi, 2024-05)
    In this thesis, we define and study a new class of additive codes over finite fields, viz. multi-twisted (MT) additive codes, which is a generalization of constacyclic additive codes and an extension of MT (linear) codes ...
  • Yadav, Monika; Sharma, Anuradha (Advisor) (IIIT-Delhi, 2024-05)
    Self-orthogonal codes, self-dual codes, and linear codes with complementary duals (LCD codes) constitute the three most important and well-studied classes of linear codes. These codes have nice algebraic structures and are ...
  • Goel, Shivani; Chaubey, Sneha (Advisor) (IIIT-Delhi, 2024-05)
    While studying the trigonometric series expansion of certain arithmetic functions, Ramanujan, in 1918, defined a sum of the nth power of the primitive qth roots of unity and denoted it as cq(n). These sums are now known ...
  • Ghosh, Dipa; Sircar, Sarthok (Advisor) (IIIT-Delhi, 2024-03)
    This thesis is about an analytical study of viscoelastic fingering that solves the problem of predicting the finger width when a Newtonian fluid (with negligible viscosity) drives a non-Newtonian (power-law) fluid. The ...
  • Bansal, Diksha; Sircar, Sarthok (Advisor) (IIIT-Delhi, 2021-03)
    In this thesis, we have explored the temporal and spatiotemporal stability analyses offree shear, viscoelastic flows in the limit of low to moderate Reynolds number (Re) and Weissenberg number (We). The description of the ...
  • Bhavna; Pandey, Ashish Kumar (Advisor) (IIIT-Delhi, 2025-08)
    This thesis investigates the spectral instabilities of various nonlinear water wave models through rigorous analytical techniques. Focusing on three fundamental types of instabilities, modulational instability, transverse ...
  • Aggarwal, Divya; Ram, Samrith (Advisor) (IIIT-Delhi, 2024-09)
    Let V be a vector space of dimension n over the finite field Fq and T be a linear operator on V . Given an integer m that divides n, an m-dimensional subspace W of V is T-splitting if V = W ⊕ TW ⊕ · · · ⊕ Td−1W where d = ...
  • Arora, Akansha; Ram, Samrith (Advisor) (IIIT-Delhi, 2022-11)
    This thesis consists of some interesting combinatorial problems on matrix poly- nomials over finite fields. Using results from control theory, we give a proof of a result of Lieb, Jordan and Helmke (2016) which solves the ...
  • Chauhan, Tanisha; Sircar, Sarthok (Advisor) (IIIT-Delhi, 2025-01-27)
    This thesis explores the rheodynamics of viscoelastic subdiffusive fluids and high-lights the potential of fractional calculus in modelling these types of fluids. A novel fractional model is developed to investigate the ...

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