Welcome to my homepage!
    Dr.Debajit Kalita
  • Assistant Professor.
  • Department of Mathematical Sciences.
  • Tezpur University.
  • Tezpur- 784028.
    Email: k.debajit@gmail.com/ kdebajit@tezu.ernet.in

  • Teaching »
  • Year Semester Courses
    2011 Spring Mathematics-I (MI101)
    2012Spring Graph Theory (MS549), Mathematics-II (B.Tech: MS103)
    Autumn Graph Theory (MI 405), Mathematics-I (MI101)
    2013Spring Discrete Mathematics (MS550/MI550), Mathematics-II (B.Tech: MS103)
    AutumnGraph Theory (MI 405), Mathematics-I (MI101)
    2014Spring Discrete Mathematics (MI550), Mathematics-II (B.Tech: MS103)
    AutumnGraph Theory (MI 405), Mathematics-I (MI101)
    2015Spring Elementary Real Analysis (MI 216), Discrete Mathematics (MI550)
    AutumnGraph Theory (MI405), Mathematics-I (MI101)
    2016Spring Elementary Real Analysis (MI 216), Elementary Complex Analysis (MI 312).
    Autumn Coordinate Geometry (MI207), Mathematics-I (MI/MD101)
    2017Spring Elementary Real Analysis (MI/MD 216).
    Autumn Graph Theory (MI549/MS549), Mathematics-I (MI/MD101)

    • Academic Background »
      • M.Sc. from Gauhati University.
      • Ph.D from IIT Guwahati.
    • Thesis Title »

      • Spectra of Weighted Directed Graphs.
    • Research Interest »

      • Algebraic Graph Theory: Linear Algebra and its Applications to Graph Theory, Adjacency and Laplacian Spectra of Graphs.
    • List of Publications »

    • S.No. Author(s) Article Year
      1 R. B. Bapat, D. Kalita
      & S. Pati
      On Weighted Directed Graphs,
      Linear Algebra and Its Applications, 436, 99-111.
      2012
      2 D. Kalita On 3-colored Digraphs with Exactly One Nonsingular Cycle,
      Electronic Journal of Linear Algebra, 60, 743-756.
      2012
      3 D. Kalita & S. Pati On the Spectrum of 3-coloured Digraphs,
      Linear and Multilinear Algebra, 23, 397-421.
      2012
      4 D. Kalita Spectral Integral Variation and Unicyclic 3-colored Digraphs with Second Smallest Eigenvalue 1,
      Linear Algebra and Its Applications, 439, 55-65.
      2013.
      5 D. Kalita Determinant of the Laplacian Matrix of Weighted Directed Graphs,
      Combinatorial matrix theory and generalized inverses of matrices, Springer, 6, 57-62.
      2013
      6 D. Kalita Algebraic Connectivity of lollipop graph: a new approach,
      Discrete Mathematics, Algorithms and Applications, 6, 1450028-33.
      2014
      7 D. Kalita & S. Pati Reciprocal Eigenvalue Property for Unicyclic Weighted Directed Graphs with Weights from {±1,±i},
      Linear Algebra and Its Applications, 449, 417-434.
      2014
      8 D. Kalita Properties of first eigenvectors and first eigenvalues of nonsingular weighted directed graphs,
      Electronic Journal of Linear Algebra, 30, 227-242.
      2015
      9 D. Kalita Extremizing first eigenvalue of 3-colored digraphs made with given blocks,
      Linear Algebra and Its Applications, 503, 83-99.
      2016
      10 R. B. Bapat, D. Kalita, M. Nath,
      & D. Sarma,
      Convex and quasiconvex functions on trees and their applications,
      Linear Algebra and Its Applications, 533, 210-234 .
      2017
      11 D. Kalita & K.Sarma Minimizing algebraic connectivity over graphs made with given blocks,
      Linear and Multilinear Algebra, accepted.
      2018