- (with W.E. Deskins) Influence of normality Conditions on almost minimal subgroups of a finite group, J. of Algebra 52 (1978), pp. 364-377.
- On minimal non PN-groups, J. of Algebra, 65 (1980), pp.103-109.
- Finite groups admitting the extensions of the automorphisms of a maximal elementary abelian 2- subgroup, J. of Algebra, V. 73 (1981), pp. 37-43.
- Codes, partial geometries, and generalized Quadrangles, in 'Algebra and Applications', eds. J.B. Srivastava and H.L.Manocha, Marcel-Dekkar, 1981.
- Codes and generalized polygons, in `Combinatorics and Applications' (Calcutta 1982),Volume in honour of Professor Shrikhande,Indian Statistical Institute, (1984), pp.303-310.
- (with B. Bagchi) Minimum weight words of binary codes associated with finite projective geometries, Discrete Maths. 57 (1985), pp.307-310.
- (with B. Bagchi) Even order inversive planes, generalized quadrangles and codes, Geo. Dedicata, 22 (1987), pp.137-147.
- (with B. Bagchi) One step completely orthogonalizable codes from generalized quadrangles, Information and computation, 77 (1988) pp.123-130.
- (with B. Bagchi) Intersection pattern of the classical ovoids in symplectic 3-space of even order,J. of Algebra 126 (1989), pp.147-160.
- (with B. Bagchi) Codes associated with generalized polygons, Geometriae Dedicata 27 (1988), pp. 1-8.
- with B. Bagchi) Two characterzations of miquelian inversive planes, Geometriae Dedicata 48 (1993), pp.83-91.
- (with G.Misra) Bounded Modules, extremal problems, and a curvature inequality, J. of Functional Analysis, 88 (1990), pp.118-134.
- (with G.Misra) Completely bounded Modules and associated extremal problems, J. of Functional Analysis, 91 (1990), pp.213-220.
- (with G.Misra) Homogeneous tuples of operators and representations of some classical groups, J. of Operator Theory, 24 (1990), pp.23-32.
- Intersection pattern of Ree subgroups in $G\sb 2(q)$, $q=3\sp {2n+1}>3$. Electronic notes in discrete mathematics. Vol. 15, 133--135 (electronic).
- (with Peter Sin) The code of a regular generalized quadrangle of even order,Proceedings of the Symposium in Pure Mathematics , American mathematical Society ,V.63 (1998), pp.485-496.
- (with Peter Sin) The binary code associated with nondegenerate quadrics of a symplectic space of even order, J.Combinatorial Theory (A) V.94 ( 2001).pp. 1-14.
- (with S.P.Inamdar) Codes from Veronese and Segre embeddings and Hamada's formula, J. Combinatorial theory (A), V.96 (2001),pp.20-30.
- (with Peter Sin) On the doubly transitive permutation represenatations of SP(2n,F_2), J. of Algebra V.257,(2002), 509-527.
- (with R.P. Shukla) Structure of a code related to
*SP(4,q),q*even, Proc. in Indian Academy of Sciences-Math. Sciences, 117 (2007), 457-470. (2007). - (with B.K.Sahoo) A charecterisation of finite symplectic spaces of odd prime order, J. of Combinatorial theory (A) 114 (2006), 52-64.
- (with B.K.Sahoo) On the order of a non-abelian representation group of a slim dense near Hexagon, submitted to J. of Algebraic Combinatorics, J. of Algebraic Combinatorics 29 (2009) 195-213.
- (with B. De Bruyn and B.K. Sahoo) Non-abelian representations of the slim dense near hexagons on 81 and 243 points, J. of Algebraic Combinatorics, 32, (2011) 127-140.
- (with R.P.Shukla) Multiplicities of simple modules in the Sp(4,q) permutation module on $P(3,q)$, $q$ even, Archiv der Mathematik, 97 (2011) 237-245.
- (with B.K.Sahoo) On the existence of non-abelian representations of a slim near hexagon having big quads, preprint (15 pages), submitted to J. of Combinatorial theory (A).
- Some equations over, and automorphisms of, finite fields related to simple groups of Suzuki and Ree types, `Groups, finite Geometries and Buildings' Springer (2011) 251-272.
- (with B. Bagchi) Ovoidal packing in PG(3,q), q even (preprint).

'Invariants of incidence matrices', Vol.78, Nos.1-4 (2009), 145-162 in `The Mathematics Student'.

This is an expanded version of an invited talk at Indian Mathematical Society, 2008.

The following are at various stages of completion:

- An introduction to Buildings (150 pages, approx).

- Codes from some rank 2- geometries (200 pages, approx).

- Notes on Monster (50 pages, approx).

- Coxeter groups (150 pages, approx).

- `Essays in Geometric group theory', Lecture Notes Series, Number 9, Ramanujam Mathematical Society, 2009.

- `Perspectives in Mathematical Sciences (Volume I & II)' (with Professors T.S.S.R.K. Rao,
Mohan Delampady and B. Rajeev), Platinum Jubilee Series, Vol. 7 & 8, World Scientific, 2009.

- `Groups, finite Geometries and Buildings', a collection of articles by speakers in the ICM satellite conference and invited authors, Springer 2011

This page: http://www.isibang.ac.in/~nsastry

Last modified: January 8, 2013

[Statmath Unit] [Indian Statistical Institute]