The Department aims to promote close collaboration
between various mathematical disciplines and with other applied
areas. The areas of current research are :
Algebraic and Combinatorial Topology
Combinatorial manifolds, PLmanifolds, minimal triangulation
of manifolds, triangulation of spheres and projective planes with
few vertices, pseudomanifolds With small excess, equivelar polyhectral
maps.
Commutative Algebra and Algebraic Geometry
Study of derivation modules of curves and hypersurfaces, connection
with Zariski  Lipman conjecture, monomial curves, complete intersections
and set theoretic complete intersections, intersection theory
of algebraic varieties, minimal number of generators for ideals
and modules. Study of certain algebraic surfaces.
Differential Equations
Homogenization of partial differential equations, controllability,
viscosity solutions.
Differential Geometry
Manifolds of positive curvature (Ricci, scalar and isotropic),
Einstein manifolds, conformal geometry (Weyl curvature and the
Yamabe invariant), Gromov hyperbolic spaces.
Finite fields and Coding Theory
Classification of permutation polynomials, study of PAPR of families
of codes, construction of codes with low PAPR.
Functional Analysis and Operator Theory
Hilbert modules, multivariable operator theory, indefinite inner
product spaces.
Harmonic Analysis
Analysis on the Heisenberg group and generalisations such as Htype
groups, analysis on symmetric spaces of non compact type and on
semisimple Lie groups, spectral multipliers of Laplcians and subLaplacians
on these spaces, integral geometry on homogeneous spaces and relations
with complex analysis.
Low Dimensional Topology
Topology of threemanifolds and smooth fourmanifolds, Geometric group theory,
Heegaard Floer theory and its relations to geomtric topology.
Nonlinear Waves, Hyperbolic Equations and
Numerical Analysis
Physical phenomena associated with a class of nonlinear waves
governed by a hyperbolic systems of quasilinear partial differential
equations and hyperbolic conservation laws. Application of ray
methods to study successive positions of a curved wave front and
a shock front. Relation between kinematical conservation laws
and level set theory. Theoretical (i.e., study of approximate
equations), numerical (i.e., computation of solutions with discontinuties)
and applied (sonic boom, extension of Fermat's principle) problems.
Nonlinear Dynamics
Couded dynamical systems, Synchronization, Turing patterns, applications
of Lie algebraic methods to nonlinear Hamiltonian systems, fractal
dimensional analysis, generalized replicator dynamics.
Probability and Stochastic Processes
Stability and control of stochastic systems, diffusion and related
topics, stochastic dynamic games, applications to manufacturing
systems, first passage time problems for anomalous diffusion,
long memory processes, branching particle systems, stochastic
differential equations, queuing theory.
Several Complex Variables
Holomorphic mappings, convexity and its applications to function theory, finitetype domains, pluripotential theory, and complex dynamical systems.
Time Series Analysis
Application of time series analysis techniques to neuroscience
esp. brainmachine interface, applications to geophysics.
