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C. Pandu Rangan

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Professor

Ph.D., IISc, Bangalore, 1984

M.Sc., University of Madras, 1977

B.Sc., University of Madras, 1975

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Research Focus:
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*Algorithms*

I focus my research in the design of pragmatic algorithms. Problems of
practical interest in Graph Theory, Combinatorics and Computational
Geometry often turn out to be NP-complete or very hard to solve that
we have to look for pragmatic alternatives for them. We explore the
avenues such as 1) Restricting the problem domain 2) Approximate
algorithm design 3)Randomized Algorithms 4) Parallel and VLSI
Algorithms and 5) Cryptography Applications. Our design strategies are
neither special purpose (very specific to a problem) nor general
purpose (which are too
inefficient)but broad purpose ones. Thus our research efforts can be
summarised in a single term - Application Oriented Paradigm Design
(AOPD) (one more acronym to the world of Computer Science!). In Cryptology
my current focus is on Secure message transmission and Provable security of cryptographic protocols / primitives.

**
Selected Publications
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- G.Srikrishna, C.PANDU RANGAN, Optimal Parallel Algorithms for Path Problems
on Planar
Graphs, Theoretical Computer Science, Vol.145, pp 27 - 43, (1995).
- K. Madhukar, D. Pavan Kumar, C. PANDU RANGAN, R. Sundar, Systematic Design of
an
Algorithm for Biconnected Components. Science of Programming., Vol. 25, pp. 63 -
77, (1995).
- K.S.Earwarakumar, S.V.Krishnan, C.PANDU RANGAN, S.Seshadri, Optimal Parallel
algo-
rithm for finding st- ambitus of a Planar Biconnected Graphs, Algorithmica,
(1996).
- G.Venkatesan, U.Rotics, M.S.Madan Lal, J.A.Makovsky, C.Pandu
Rangan, Restrictions of Minimum Spanners Problem, Information and
Computation, Vol. 136, pp. 143 - 164, (1997).
- A.Arvind, C. Pandu Rangan, Symmetric Min-Max heap: A simpler
data structure for double-ended priority queue, Information Processing
Letters, Vol. 68, pp. 197-199, (1999).
- M.V.N. Ashwin Kumar, Pranava.R. Goundan, K. Srinathan and C.
PANDU RANGAN, On Perfectly Secure Communication over Arbitrary
Networks, Proceedings of the 21st Annual ACM Symposium on Principles of
Distributed Computing (PODC 2002), pp. 193-202, 2002.

Link to full
Curriculum Vitae. Click here to download Full Curriculum Vitae (PDF File)