MATHEMATICAL
SCIENCES | |
1990 |
Balasubramanian, Ramachandran
(DOB: 15 March 1951), Sp: Number theory. The Institute of Mathematical
Sciences, CIT Campus, Taramani, Chennai -
600 113. Tel (044) 2351856 (O), 2453926 (R), Fax 2350586, Email : balu @ imsc.ernet.in Citation Prof. Balasubramanian has done significant work on analytic number theory. He is particularly known for a substantial improvement of a long standing result of E.C.Titchmarsh and his contributions in settling Waring’s problem for fourth powers. |
1988 |
Banerjee, Mihir Baran (DOB: 29
March 1943), Sp: Hydrodynamic and Hydromagnetic
stability. Department of Mathematics, Himachal Pradesh University,
Shimla - 171 005 Citation Prof. Banerjee has to his credit significant contributions on the theory of hydrodynamic and magnetohydrodynamic stability. He has done notable work on magnetoconvection and thermohaline convection. |
1995 |
Bhatia, Rajendra (DOB: 8 May
1952), Sp: Mathematical analysis; Linear
Operators. Indian
Statistical Institute, 7 SJS Sansanwal Marg, New Delhi - 110 016. Tel
(011) 664741 (O), 6867942 (R), Fax 6856779, Email : rbh @
isid1.isid.ac.in Citation Dr Bhatia obtained several sharp and powerful results in the perturbation theory of matrices, for introducing new techniques from differential geometry and Fourier analysis into numerical linear algebra and for formulation and proofs of operator versions of several classical inequalities. |
1959 |
Chandrasekharan, Komaravolu (DOB: 21 November 1920), Sp: Theory of equations of zeta- functions. 8092, Zurich, Switzerland. Tel (+41-1-) 6324199 (O), 3819686 (R) Citation Prof.
Chandrasekharan’s original contributions to the theory of functional
equations of zeta-functions have earned him international repute. These
researches are characterized by a combination of analytical and
arithmetical methods of approach and belong to the classical tradition of
analytical theory of numbers. |
1990 |
Dani, Shrikrishna Gopalrao (DOB:
3 June 1947), Sp: Ergodic theory;Dynamics; Lie
groups; Probability measures on groups. Tata Institute of Fundamental
Research, Homi Bhabha Road, Mumbai - 400 005. Tel (022) 2152971 Extn. 2218
(O), 2151760 (R), Fax 2152110, 2152181, Email :
dani@math.tifr.res.in Citation Dr Dani’s contributions are in the
field of ergodic theory in general and properties of orbits of Lie group
actions on homogeneous spaces in particular. His work in the fields of
dynamical systems, number theory and topology has made a notable impact.
He and his collaborators have achieved important progress in respect of
the problem of embedding an infinitely divisible probability distribution
on a group in a continuous one parameter convolution semigroup. |
1981 |
Ghosh, Jayanta Kumar (DOB: 22 May 1937), Sp: Probability and Statistics.
Stat-Math Division, Indian Statistical Institute, 203, Barrackpore Trunk Road, Calcutta - 700 035.
Tel (033) 526694, 4752071, Email : jkg @
www.isical.ernet.in Citation Prof. Ghosh has made
significant contributions to theoretical statistics in several directions.
He has extended the results of Fisher and Rao on the second order
efficiency of maximum likelihood estimators. Using refined analytical
tools he has obtained useful results in the asymptotic expansion of the
distribution of sample statistics. In the matter of applications of
probabilistic methods, he has made an excellent contribution to the
understanding of sediment transport in fluid flows through stochastic
models. Earlier, he had proved under very general conditions that in
reducing a problem through sufficiency and invariance, the order in which
these criteria are applied is immaterial. |
1972 |
Gupta, Anadi Sankar (DOB: 1
November 1932), Sp: Boundary layer theory;
Hydrodynamics and hydromagnetic stability; Heat & Mass transfer in
fluid flows. Department
of Mathematics, Indian Institute of Technology, Kharagpur - 721 302. Tel
(03222) 4875 (O), Fax 55303, Email
: shakti ! iit kgp ! sys 320 ! <usersid> Citation Prof. Gupta has made significant contributions in the field of fluid dynamics and magnetohydrodynamics, notably on heat transfer in free convection flow in the presence of magnetic field. His work on the stability of a layer of rotating electrically conducting liquid in the presence of uniform magnetic field, oriented parallel to the axis of rotation is important, as it discusses the finite amplitude disturbances. |
1975 |
Jain, Padam Chand (DOB: 30
September 1930), Sp: Numerical solutions of partial
differential equations. 3389, Sector D/3, Vasant Kunj, New Delhi 110
070. Tel (011) 6894048 (R) Citation Prof. Jain has done important work on the development of algorithms for solving non-linear problems involving irregular boundaries. Algorithms based on finite difference technique, finite element technique and quasilinearization and invariant embedding have been developed and applied to various problems in fluid dynamics. These techniques have added to the existing knowledge on fluid dynamics and its applications and hold promise of enabling applied mathematicians and scientists to solve still more difficult non-linear problems. His work is likely to be of value in finding solutions for problems of stability and turbulence in fluid dynamics, numerical weather forecasting and magneto-hydrodynamic power generation. |
1993 |
Karmeshu (DOB: 30 May 1949), Sp: Mathematical modelling. School
of Computer & Systems Sciences, Jawaharlal Nehru University, New Delhi
- 110 067. Tel (011) 6107676
Extn. 396 (O), 7273793 (R), Fax
6865886 Citation Dr Karmeshu has developed mathematical models for the dynamics of social and technical systems with special emphasis on their stochastic evolution. His contribution towards the understanding of the unity of structure and dynamics of diverse apparently unconnected systems is highly significant. |
1978 |
Krishnamurthy,
Edayyathu Mangalam Venkatarama (DOB: 18 June 1934), Sp: Parallel & Distributed
computing; Information systems design and Software design. Research
School of Information Sciences and Engineering, Australian National
University, Canberra ACT 0200, Australia. Tel (61-6)2798640 (O), 2497140
(R), Fax 2798651, Email : abk @ cslab.anu.edu.au; evk.
krishnamurthy @ anu.edu.au Citation Prof. Krishnamurthy has made fundamental contributions to the design of error-free arithmetic unit using p-adic numbers. The computer science research group headed by Prof. Krishnamurthy has developed new algebraic techniques for the reconstruction of three-dimensional objects using two-dimensional projections at different angles. He has developed a new computer language for storing and retrieving chemical information. Prof. Krishnamurthy has made significant contributions to the design of algorithms for computer vision, pattern and shape analysis. He has developed an algorithm for automatic phonetic transcription of Tamil in Roman script. |
1994 |
Kumar,
Neithalath Mohan (DOB: 12 May 1951), Sp; Algebra; Algebraic
Geometry. School of Mathematics, Tata Institute of Fundamental
Research, Homi Bhabha Road, Mumbai - 400 005. Tel (022) 2152971 (O),
Fax 2152181, 2152110 Citation Dr Kumar has made profound and original contributions to commutative algebra and algebraic geometry. He is well known for his beautiful contribution settling the Eisenbud-Evans conjectures. Another piece of work that has received much acclaim, is his paper on Rational Double Points on Rational Surface. His recent work on complete intersection curves settles a question of great interest. |
1985 |
Malik, Surender Kumar (DOB: 8 September 1942), Sp: Applied mathematics; Nonlinear
phenomena. CAS in
Mathematics, Panjab University, Chandigarh - 160 014. Tel (0172)
541132, 541441 Extn 1163,1183
(O), 742423 (R), Fax 541132, 541409, Email : staff % maths @
puniv.chd.nic.in; skm %
maths@ puniv.chd.nic.in Citation Prof. Malik has done pioneering
work on nonlinear dispersive waves in self-gravitating media,
electrohydrodynamics and magnetohydrodynamics. In particular his theory on
nonlinear breakup of a self-gravitating column throws light on the
phenomenon of condensation in astronomical bodies. His work on nonlinear
self-focussing in magnetic fluids if noteworthy and is likely to have
industrial applications. |
1991 |
Mehta, Vikram
Bhagvandas (DOB: 15
August 1946), Sp: Algebraic geometry; Vector
bundles. School of Mathematics, Tata Institute of Fundamental
Research, Homi Bhabha Road, Mumbai - 400 005. Tel (022) 2152971
Extn 2282 (O), 3612725 (R), Fax
2152181, 2152110, Email :
vikram @ math.tifr.res.in Citation Dr Mehta has made contributions to algebraic geometry, especially in problems related to homogeneous spaces of algebraic groups and the theory of vector bundles. The notion of Frobenius split varieties introduced by him and Dr Ramanathan has led to rapid developments in the study of Schubert varieties. |
1998 |
Nag, Subhashis (DOB: 14 August 1955), Sp: Complex analytical geometry
moduli of Riemann surfaces; Mathematical physics (string theory).
Institute of Mathematical
Sciences, CIT Campus, Taramani, Chennai - 600 113. Tel (044) 2352267,
2351856 (O), Fax 2350586, Email :
nag @ imsc.ernet.in Citation Dr Nag has made significant contributions to complex analytic theory of Teichmuller Space. His work on Universal Teichmuller Space of compact Riemann surfaces is very important. |
1975 |
Narasimhan, Mudumbai Seshachalu
(DOB: 7 June 1932), Sp: Analysis; Algebraic and
Differential geometry. International Centre for
Theoretical Physics, PO Box 586, 34100 Trieste, Italy. Tel (39-040)
2240272 (O), 314264 (R), Fax 2240490, Email : narasim @
ictp.trieste.it Citation Prof. Narasimhan has made significant contributions in the fields of differential equations, differential geometry and algebraic geometry. Working jointly with Dr C S Seshadri, he gave a characterization of stable vector bundles on an algebraic curve in terms of unitary representation of certain discrete groups. In a joint study of the moduli varieties of these vector bundles with S Ramanan, he has determined the singularities of these varieties and in the case of low ranks their desingularisation. Apart from relating the moduli of these varieties with moduli of the curve, he has contributed to the study of their cohomology. |
1987 |
Parimala, Raman (DOB: 21 November 1948), Sp: Algebra. School of Mathematics, Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai - 400 005. Tel (022) 2152971 Extn 2392 (O), 2152853 (R), Fax 2152110, Email : parimala @ math.tifr.res.in Citation Dr Parimala’s major
areas of interest have been quadratic spaces over polynomial rings,
classification and composition theory of quaternary quadratic modules over
arbitrary commutative rings and determination of wittgroup. Her work
represents much of the front edge of our present knowledge in this area. |
1976 |
Parthasarathy, Kalyanapuram Rangachari (DOB: 25 June 1936), Sp: Probability theory; Quantum stochastic calculus. Indian Statistical Institute, 7 SJS Sansanwal Marg, New Delhi - 110 016. Tel (011) 664741 (O), 2494197 (R), Fax 6856779, Email : krp @ isid1.isid.ac.in Citation Prof. Parthasarathy has done significant work on the application of probability theory to locally compact groups. Working in collaboration with K Schmidt, he has derived infinitely divisible projective representations, the Levy-Khinchine-Araki formula on locally compact groups and limit theorems for uniformly infinitesimal families of positive definite Kernels. His work has had a significant impact in the area of theoretical quantum mechanics associated with names of Araki and Woods. |
1985 |
Parthasarathy, Rajagopalan (DOB: 6 October 1945), Sp : Representation theory of Lie groups and algebras. School of Mathematics, Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai - 400 005. Tel (022) 2152971 Extn 2246 (O) 2152762 (R), Fax 2152181, 2152110, Email : sarathy @ math.tifr.res.in Citation Prof. Parthasarathy is one of the leading workers on the theory of unitary representations of semi-simple Lie groups. In a profound work published in Proceedings of the Indian Academy of Sciences, he obtained a criterion for the unitarizability of certain highest weight modules, which was a work of great significance and originality. This has had considerable influence on later work. |
1986 |
Parthasarathy, Thiruvenkatachari (DOB: 1 March 1941), Sp: Game theory and mathematical programming. Indian Statistical Institute , 7 SJS Sansanwal Marg, New Delhi - 110 016. Tel (011) 6514741 (O), 6868114 (R), Fax 6856779, Email : tps @ isid1.isid.ac.in Citation Prof. Parthasarathy has made
significant contributions in the field of stochastic games. In particular,
he has given a (partial) solution to the classification problem and has
successfully identified two major classes of stochastic games where the
order field property holds. This is a significant breakthrough in the
field of finite algorithms. |
1983 |
Passi, Inder Bir Singh (DOB: 20 August 1939), Sp: Algebra. Centre for
Advanced Study in Mathematics, Panjab University, Chandigarh - 160 014.
Tel ( 0172) 541156, 541441 Extn 1165 (O), 691283 (R), Fax 541132, Email : passi @
koel.imtech.ernet.in Citation Prof. Passi, a noted group-theorist in India, has made significant contribution to certain aspects of theory of groups specially to the study of group-rings in which he ia leading expert. His results on the dimension subgroups, augmentation powers in group-rings, and related problems have received wide recognition. His 1979 monograph summarizing the state of the subject is a basic reference source. |
1982 |
Prakasa Rao, Bhagavatula Lakshmi
Surya (DOB: 6 October
1942), Sp: Mathematical Statistics.
Indian Statistical Institute , 7 SJS Sansanwal Marg, New Delhi - 110
016. Tel (011) 6516200 (O),
6969748 (R), Fax 6856779, Email : blsp @ isid1.isid.ac.in Citation Prof. Prakasa Rao has made significant contributions on statistical inference in stochastic processes. In his earlier work, he had extended the Bernstein-von-Mises rates of convergence for independent variables to discrete parameter stationary Markov processes. He has developed the theory of large sample tests and estimation for general stochastic processes, and has investigated large sample properties of maximum probability, maximum likelihood and Bayes, estimates for diffusion processes. In recent years, Prof. Prakasa Rao has obtained significant results with regard to the asymptotic theory of statistical inference in stochastic processes and non-parametric density estimation. |
1989 |
Prasad, Gopal (DOB: 31 July 1945), Sp: Theory of Lie groups and
Algebraic groups. Department of Mathematics, Michigan University, Ann
Arbor, MI 48109, USA. Tel (+1-734) 7640372 (O), 7618470 (R), Fax 7630937,
Email : gprasad @
math.lsa.umich.edu Citation Prof. Prasad is a leading expert in the theory
of algebraic groups and their arithmetic. Among his significant
contributions are strong approximation for semi-simple groups over
function field, study of central extensions of p-adic and adelic groups
and the computation of the covolume of all principal S-arithmetic
subgroups. His work reveals his mastery over the most intricate aspects of
arithmetic groups and has led to important developments in the field. |
1983 |
Prasad, Phoolan (DOB: 1 January
1944), Sp: Nonlinear wave; Partial
differential equations; Fluid mechanics. Department of
Mathematics, Indian Institute of Science, Bangalore - 560 012. Tel (080)
3092264 /65/67 (O), 3371039 (R), Fax 3341683, 3342085, Email :
prasad@math.iisc.ernet.in Citation Prof. Phoolan Prasad has done significant work in the area on non-linear hyperbolic equations. He has succeeded in assessing the basic properties of the equations of various physical phenomena, generalized these mathematical properties and then used his theory to explain new results in the field of non-linear waves. He has given the proof of the existence of a new type of wave on the interface of a clear liquid and a mixture in a sedimentation process; this has been confirmed by recent experiments. |
1977 |
Raghunathan, Madabusi Santanam
(DOB: 11 August 1941), Sp: Algebraic groups; Lie groups
and discrete subgroups. Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai - 400 005. Tel (022)
2152971, 2188654 (O), 2152466 (R),
Fax 2152181, 2152110, Email
: msr@math.tifr.res.in Citation Prof. Raghunathan, an eminent mathematician, has been responsible in the past decade for advancements in the area of Lie groups, particularly discrete subgroups of Lie groups. In his earlier work he proved the rigidity of “non-uniform” arithmetic lattices connected with Selberg’s conjecture. Later, he essentially solved Selberg’s conjecture for non-uniform lattices before the complete solution of the conjecture by G.A. Margulis. Through his recent work he has made significant contributions to Serre’s conjecture on the “Congruence Sub-group Problem” and generalisations of Quillen’s solution of Serre’s problem on vector bundles on the affine space. |
1979 |
Raghavan, Srinivasacharya (DOB:
11 April 1934), Sp: Number theory;
Automorphic functions. A 1, Ashok Ganapathim, 25 Fourth Main Road, R A
Puram, Chennai - 600 028. Tel (044) 4364869 (R) Citation Prof. Raghavan has made significant contributions on number theory. His work on modular forms of several variables has been considered basic and extends in a non-trivial way the ideas of Hecke and Siegel. He has proved important results in analytic continuation of Eisenstein-Siegel series. His characterization of singular Siegel modular forms answers a long standing question of Maass. His work on Diophantine approximation is a significant improvement on the earlier work of Davenport and Heilbronn. |
1998 |
Ramadas,
Trivandrum Ramakrishnan (DOB: 30 March 1955), Sp: Algebraic and Differential
geometry; Mathematical physics. School of Mathematics, Tata Institute
of Fundamental Research,
Homi Bhabha
Road, Mumbai - 400 005. Tel (022) 2152971
(O), 2152882 (R), Fax 2152181, 2152110, Email : ramadas @
math.tifr.res.in Citation Dr Ramadas has made significant contributions to algebraic geometry and related models in mathematical physics. His contributions to generalised theta functions on moduli spaces of vector bundles and the Verlinde formula are very important. |
1979 |
Ramanan,
Sundararaman (DOB: 20
July 1936), Sp: Algebraic geometry;
Differential geometry. Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai - 400 005. Tel (022) 2152971
Extn 2220 (O), 2152308 (R), Fax 2152110, Email : ramanan @
math.tifr.res.in Citation Prof. Ramanan has made significant contributions in differential geometry and algebraic geometry, some in collaboration with Prof. M S Narasimhan. In differential geometry, his work with Prof. Narasimhan proving the existence of universal connections has been of relevance in the context of Yang-Mills theory in physics. In algebraic geometry, Prof. Ramanan’s work concerns the study of the moduli space of vector bundles on an algebraic curve. The result that the moduli space of vector bundles on an algebraic curve has the same local deformation space as that of the curve, gives an elegant generalization of moduli spaces of vector bundles on a hyper-elliptic curve and on the non-existence of Poincare families for certain moduli varieties of vector bundles on curves has been widely acclaimed. |
1991 |
Ramanathan, Annamalai (DOB: 29 August 1946), Sp: Algebraic geometry. Expired. Citation Dr Ramanathan has made
contributions to algebraic geometry. His joint work with Dr Mehta, where
the notion of Frobenius split varieties was introduced, has led to the
solution of a host of problems on Schubert varieties and related topics.
He has also made important contribution to the study of stable principal
bundles and related areas. |
1965 |
Ramanathan, K Gopala (DOB: 13
November 1920), Sp: Quadratic form;
Modular functions and discontinuous groups work on Ramanujan’s notes.
Expired. Citation Dr Ramanathan’s work concerns mainly three aspects of Number Theory: Study of arithmetical groups, Diophantine inequalities and Automorphic functions related to quadratic forms. The work on arithmetical groups, relates to the solution of some important problems concerning their finite generation, commensurability and maximality. The work on Diophantine inequalities is related to problems of Davenport on the density of values of quadratic and other arithmetical forms. His recent work on automorphic functions is related to Siegel formula and is a notable contribution to Analytic Number Theory. |
1959 |
Rao, Calympudi Radhakrishna (DOB:
10 September 1920), Sp:
Mathematical statistics and its applications in biology. Department of
Statistics, Penn State University, 326, Thomas Building, University Park,
PA 16802, USA. Tel (814) 8653194 (O), 2346209 (R), Fax 8637114 (O);
2340372 (R), Email : crr1 @
psu.edu Citation Prof. Radhakrishna Rao is internationally known for his contributions to statistical theory and biometric methods, and as the principal author of several major statistical theorems which are incorporated in modern books on statistics. He has formulated the concept of second order efficiency in the theory of estimation; developed new combinatorial arrangements of importance in experimental design in agriculture and animal husbandry; introduced the concept of orthogonal arrays which provided an essential component in disproving Euler’s conjecture on orthogonal Latin squares; made significant contributions to the theory and application of multivariate analysis which are incorporated in his book, “Advanced Statistical Methods in Biometric Research”, published in New York. |
1972 |
Seshadri, Conjeevaram
Srirangachari (DOB: 29 February 1932), Sp: Algebraic geometry; Algebraic
groups. SPIC Mathematical Institute, 92, G N Chetty Road, Chennai -
600 017. Tel (044) 8284232, 8284251 (O), 4951198 (R), Fax 8256842, Email : css @
smi.ernet.in Citation Dr Seshadri’s significant contribution lies in algebraic geometry, mainly the moduli problems for vector bundles on curves and the construction of quotient spaces modulo-reductive algebraic groups. In a joint paper with Prof. M S Narasimhan, he gave a characterization of the stable bundles of D Mumford in terms of unitary representation of certain discrete groups. Using the result, he succeeded in constructing the module varieties as normal projective varieties. This work is regarded as basic in the field. Another important work of Dr Seshadri which has found wide application in many moduli problems relates to the quotient of the space of stable points under a reductive algebraic group. |
1992 |
Sharan,
Maithili (DOB: 4 January
1953), Sp : Mathematical Modelling;
Biofluid Mechanics. Centre for Atmospheric Sciences, Indian Institute
of Technology, New Delhi -
110 016. Tel (011) 6861977 Extn. 6024 (O), 6515480 (R), Fax 6862037, Email : mathilis @
cas.iitd.ernet.in Citation Dr Sharan has developed innovative mathematical models for the transport of oxygen, carbon dioxide and carbon monoxide in living systems. He has thereby laid the foundation for understanding of physiological processes underlying the gas transport. |
1987 |
Shorey, Tarlok
Nath (DOB: 30 October
1945), Sp: Theory of numbers. School
of Mathematics, Tata Institute of Fundamental Research, Homi Bhabha Road,
Colaba, Mumbai - 400 005. Tel (022) 2152971 Extn 2222 (O), 2151802 (R),
Fax 2152110, Email : shorey @
math.tifr.res.in Citation Prof. Shorey has done significant
work on Transcendental Number theory, in particular best estimates for
linear forms in logarithms of algebraic numbers. He has to his credit
ingenious and original applications of Baker’s method to Diophantine
equations and Ramanujan’s T-function. |
1982 |
Shukla, Jang Bahadur (DOB: 13 January 1937), Sp: Mathematical modelling of ecological environmental physiological and engineering systems. Department of Mathematics, Indian Institute of Technology, Kanpur - 208 016. Citation Prof. Shukla had proposed a new deterministic theory regarding the effect of surface roughness in lubrication which was considered a breakthrough. He has done significant work on Biofluid dynamics, in particular peristaltic transport of faeces in intestines and on interaction of biorheological aspects of blood flow and arterial stenosis. Prof. Shukla has also made important contributions in the area of population dynamics of interacting species and mathematical theory of epidemics by taking into account environmental effects. His work on mathematical models on air-pollution is well recognized. |
1993 |
Singhi,
Navinkumar Madhavprasad (DOB: 19 March 1949), Sp: Combinatorial mathematics.
School of Mathematics, Tata Institute of Fundamental Research, Homi Bhabha
Road, Colaba, Mumbai - 400 005. Tel (022) 2152971 Extn 2590 (O), 2151814
(R), Fax 2152110, Email : singhi @
tifr.res.in Citation Dr Singhi has made a breakthrough in the field of combinatorial mathematics, particularly in the areas of embedding of residual designs in symmetric designs, l-design conjecture and t-designs and codes. |
1988 |
Sinha, Kalyan Bidhan (DOB: 3 June 1944), Sp: Mathematical theory of scattering and spectral theory of Schrodinger operators; algebra of operators; Quantum stochastic process. Indian Statistical Institute, 7, SJS Sansanwal Marg, New Delhi - 110 016. Tel (011) 6516200 (O), 6512086 (R), Fax 6856779, Email : kbs @ isid1.isid.ernet.in Citation Prof. Sinha has done significant work on the mathematical theory of quantum scattering, spectral theory of Schrodinger operators and quantum stochastic calculus. |
1980 |
Sridharan, Ramaiyengar (DOB: 4 July 1935), Sp: Algebra. School of Mathematics, Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai - 400 005. Tel (022) 2152971 Extn 2217 (O), 2152131 (R), Fax 2152110, Email : sridhar @ math.tifr.res.in Citation Prof. Sridharan has made
significant contributions through his studies on projective modules over
polynomial extensions of divison rings, which provided understanding of
problems on quadratic forms. His collaborative work with S Parimala and M
Ojanguren had led to important developments in the quadratic analogue of
Serre’s conjecture. Prof. Sridharan’s earlier work on Lie algebras and
projectivities over rings has attracted wide attention. |
1996 |
Sunder, Vaikalathur Shankar (DOB: 6 April 1952), Sp: Subfactors; Operator algebra. Institute of Mathematical Sciences, CIT Campus, Taramani, Chennai - 600 113. Tel (044) 2351856 (O), 8583343 (R), Fax 2350586, Email : sunder @ imsc.ernet.in Citation Dr Sunder discovered integral hypergroups which describe the fusion rules governing the irreducible bimodules coming from a subfactor in the theory of von Neumann algebras. This has led to the important conclusion that certain graphs cannot arise as principal graphs of subfactors, thereby settling a well-known conjecture of Ocneanu. |
1986 |
Tewari, Udai Bhan (DOB: 18 June 1944), Sp: Abstract harmonic analysis. Department of Mathematics, Indian Institute of Technology, Kanpur - 208 016. Tel (0512) 597500 (O), Fax 597500, Email : ubtewari @ iitk.ernet.in Citation Prof. Tewari’s main contributions have been in the area of Harmonic Analysis. He has been particularly concerned with Segal Algebras. His work proving the existence of Segal Algebras on non-compact locally compact abelian groups, with multiplier algebras different from the measure algebra, is essentially a significant contribution to this field. His extension of F and M Riesz Theorems to operators on certain Segal Algebras is another important contribution. His work on the multiplier algebra as well as the algebra of translation invariant operators on the group algebra of vector valued function is also of considerable importance. |
1976 |
Trehan, Surindar Kumar (DOB: 4 April 1931), Sp: Non-linear stability in magnetohydro-dynamics. Department of Mathematics, Punjab University, Chandigarh - 160 014. Tel (0172) 742683 (R) Citation Prof. Trehan has done significant work on stability of force-free magnetic fields, stability of jets and cylinders and stability of inhomogeneous plasmas. His recent work on the mathematical treatment of gaseous polytropes in the presence of a magnetic field may prove a breakthrough in this important area. He has also done important work on hydromagnetic waves and rotating gaseous masses. |