Department of Mathematics and Statistics at the Faculty of Science
University of Calgary
Kalathoor Varadarajan
- Professor Emeritus - Mathematics & Statistics
Research Interests
Currently Teaching
Not currently teaching any courses.
Publications
Book
- Varadarajan, Kalathoor . Some recent results on {H}opficity, co-{H}opficity and related properties , Birkh\"auser Boston, 2001. 371-392.
- Varadarajan, Kalathoor . The finiteness obstruction of {C}. {T}. {C}. {W}all , John Wiley \& Sons Inc., 1989. xii+194.
- Varadarajan, Kalathoor . Projective and free approximations 37. Amer. Math. Soc., 1985. 153-161.
- Narasimhan, M. S., Ramanan, S. , Sridharan, R. and Varadarajan, Kalathoor . Algebraic topology 2. Tata Institute of Fundamental Research, 1964. v+39.
- Varadarajan, Kalathoor . Dimension, category and {$K(\Pi ,\,n)$} spaces Academic Press, 1962. 354-355.
Journal Paper
- Varadarajan, Kalathoor . Criteria for the asphericity of 2-complexes 97.4 2002. 333-337.
- Haghany, A. and Varadarajan, Kalathoor . I{BN} and related properties for rings 94.3 2002. 251-261.
- Varadarajan, Kalathoor . Generalized power series modules 29.3 2001. 1281-1294.
- Varadarajan, Kalathoor . Noetherian generalized power series rings and modules 29.1 2001. 245-251.
- Varadarajan, Kalathoor . R{RF} rings which are not {LRF} 110.2 2000. 133-136.
- Deo, S. and Varadarajan, Kalathoor . Some finiteness properties of groups and their automorphism groups 7.4 2000. 411-424.
- Varadarajan, Kalathoor . Study of {H}opficity in certain classes of rings 28.2 2000. 771-783.
- Haghany, A. and Varadarajan, Kalathoor . Study of modules over formal triangular matrix rings 147.1 2000. 41-58.
- Haghany, A. and Varadarajan, Kalathoor . Matricial repetitiveness and strong {$\pi$}-regularity of the ring of a {M}orita context 26.1 2000. 41-50.
- Varadarajan, Kalathoor . Rings with all modules residually finite 109.4 1999. 345-351.
- Haghany, A. and Varadarajan, Kalathoor . Study of formal triangular matrix rings 27.11 1999. 5507-5525.
- Varadarajan, Kalathoor . On {H}opfian rings 83.1-2 1999. 17-26.
- Nicholson, W. Keith and Varadarajan, Kalathoor . Countable linear transformations are clean 126.1 1998. 61-64.
- Varadarajan, Kalathoor . Perfect modules 78.1-2 1998. 1-9.
- Varadarajan, Kalathoor . Corrections to: ``{O}n certain homeomorphism groups'' [{J}.\ {P}ure {A}ppl.\ {A}lgebra {\bf 92} (1994), no.\ 2, 191-197; \refmr {MR}1261126 (95e:22004)\endrefmr] 114.2 1997. 217-219.
- Varadarajan, Kalathoor . Properties of endomorphism rings 74.1-2 1997. 83-92.
- Deo, Satya and Varadarajan, Kalathoor . Discrete groups and discontinuous actions 27.2 1997. 559-583.
- Deo, Satya and Varadarajan, Kalathoor . Hopfian and co-{H}opfian groups 56.1 1997. 17-24.
- Sankaran, N. and Varadarajan, Kalathoor . Formally real rings and their real closure 70.1-2 1996. 101-120.
- Nicholson, W. Keith and Varadarajan, Kalathoor . Endomorphisms and global dimension 67.1-2 1995. 93-96.
- Nicholson, W. Keith and Varadarajan, Kalathoor . Complement preserving operators 30.3 1995. 225-232.
- Deo, Satya and Varadarajan, Kalathoor . Hopfian and co-{H}opfian zero-dimensional spaces 9.2 1994. 177-202.
- Varadarajan, Kalathoor . A note on the homotopy type of posets 126.1-3 1994. 313-323.
- Varadarajan, Kalathoor . On certain homeomorphism groups 92.2 1994. 191-197.
- F.O. Farid and Varadarajan, Kalathoor . Isometric shift Operators on C(X) 46.3 1994. 532-542.
- Berrick, A. J. and Varadarajan, Kalathoor . Binate towers of groups 62.2 1994. 97-111.
- Varadarajan, Kalathoor . Residual finiteness in rings and modules 8.1-2 1993. 29-48.
- Breckenridge, J. W., Varadarajan, Kalathoor and Wehrhahn, K. H.. Chains, multichains and {M}\"obius numbers 120.1-3 1993. 37-50.
- Bryden, John and Varadarajan, Kalathoor . Witt vectors which are rational functions 21.11 1993. 4263-4270.
- Varadarajan, Kalathoor . Group actions on flag manifolds and cobordism 45.3 1993. 650-661.
- Varadarajan, Kalathoor . Hopficity of cyclic modules 15.7 1992. 217-221.
- Varadarajan, Kalathoor . A note on the {H}opficity of {$M[X]$} or {$M[\![X]\!]$} 15.2 1992. 53-56.
- Varadarajan, Kalathoor . On certain classes of modules 36.2B 1992. 1011-1027 (1993).
- Varadarajan, Kalathoor . Hopfian and co-{H}opfian objects 36.1 1992. 293-317.
- Varadarajan, Kalathoor . On the separability of product spaces 61.1-4 1992. 117-122.
- Deo, Satya and Varadarajan, Kalathoor . Some examples of nontaut subspaces 147.1 1991. 47-56.
- Varadarajan, Kalathoor . Erratum: ``{V}erschiebung and {F}robenius operators'' [{P}roc.\ {I}ndian {A}cad.\ {S}ci.\ {M}ath.\ {S}ci.\ {\bf 100} (1990), no.\ 1, 37-43; \refmr {MR}1051088 (91c:13021)\endrefmr] 100.3 1990. 303.
- Varadarajan, Kalathoor . Verschiebung and {F}robenius operators 100.1 1990. 37-43.
- Varadarajan, Kalathoor and Wehrhahn, K. . Aperiodic rings, necklace rings, and {W}itt vectors 81.1 1990. 1-29.
- Varadarajan, Kalathoor . Acyclicity of certain homeomorphism groups 42.1 1990. 80-94.
- Varadarajan, Kalathoor . Aperiodic rings, necklace rings and {W}itt vectors. {II} 99.1 1989. 7-15.
- Varadarajan, Kalathoor . The incidence ring of a poset 31.1 1989. 59-64.
- Varadarajan, Kalathoor and Wani, P. R.. Modules over endomorphism rings. {II} 53.3-4 1989. 309-337.
- Varadarajan, Kalathoor . Some remarks on pseudo-mitotic groups 29.3 1987. 283-293 (1988).
- Mollin, Richard, Small, C. , Varadarajan, Kalathoor and Walsh, P. G.. On unit solutions of the equation {$xyz=x+y+z$} in the ring of integers of a quadratic field 48.4 1987. 341-345.
- Varadarajan, Kalathoor . On a query of {M}. {A}yad 50.1-4 1986. 211-212 (1988).
- Varadarajan, Kalathoor . Free approximations 8.4 1986. 315-319.
- Varadarajan, Kalathoor . Generalised {$V$}-rings and torsion theories 14.3 1986. 455-467.
- Varadarajan, Kalathoor . Addendum: ``{P}seudo-mitotic groups'' [{J}. {P}ure {A}ppl. {A}lgebra {\bf 37} (1985), no. 2, 205-213; \refmr {MR}0796410 (87i:20055)\endrefmr] 39.3 1986. 309-310.
- Varadarajan, Kalathoor . Injective approximations 29.3 1986. 378-382.
- Varadarajan, Kalathoor and Wehrhahn, K. . {$p$}-injectivity of simple pre-torsion modules 28.2 1986. 223-225.
- Varadarajan, Kalathoor . Pseudo-mitotic groups 37.2 1985. 205-213.
- Sarath, B. and Varadarajan, Kalathoor . Fundamental theorem of projective geometry 12.7-8 1984. 937-952.
- Varadarajan, Kalathoor . Projective approximations 36.1 1984. 178-192.
- Desale, G. B. and Varadarajan, Kalathoor . Extension of a result of {B}eachy and {B}lair 84.3 1982. 335-338.
- Varadarajan, Kalathoor . A generalization of {H}ilbert's basis theorem 10.20 1982. 2191-2204.
- Varadarajan, Kalathoor . On a theorem of {S}hock 10.20 1982. 2205-2222.
- Varadarajan, Kalathoor . Dual {G}oldie dimension of certain extension rings 10.20 1982. 2223-2231.
- Gupta, A. K. and Varadarajan, Kalathoor . Modules over endomorphism rings 8.14 1980. 1291-1333.
- Varadarajan, Kalathoor . Study of certain pre-radicals 8.2 1980. 185-209.
- Mislin, G. and Varadarajan, Kalathoor . The finiteness obstructions for nilpotent spaces lie in {$D({\bf Z}\pi )$} 53.2 1979. 185-191.
- Varadarajan, Kalathoor . Dual {G}oldie dimension 7.6 1979. 565-610.
- Sarath, B. and Varadarajan, Kalathoor . Dual {G}oldie dimension. {II} 7.17 1979. 1885-1899.
- Varadarajan, Kalathoor . Modules with supplements 82.2 1979. 559-564.
- Varadarajan, Kalathoor . Finiteness obstruction for nilpotent spaces 12.2 1978. 137-146.
- Mbuntum, F. F. and Varadarajan, Kalathoor . Half-exact pre-radicals 5.6 1977. 555-590.
- Rege, M. B. and Varadarajan, Kalathoor . Chain conditions and pure-exactness 72.1 1977. 223-235.
- Varadarajan, Kalathoor . Study of certain radicals 9.1 1976/77. 107-120.
- Halbhavi, I. G. and Varadarajan, Kalathoor . Extensions of fibrations 25.8 1976. 801-808.
- Sarath, B. and Varadarajan, Kalathoor . Divisibility of direct sums in torsion theories 28.1 1976. 211-214.
- Varadarajan, Kalathoor . {$M$}-projective and strongly {$M$}-projective modules 20.3 1976. 507-515.
- Antonelli, P. and Varadarajan, Kalathoor . On {$MS$}-fiberings of manifolds with finite singular sets 22. 1975. 33-38.
- Varadarajan, Kalathoor . Span and stably trivial bundles 60.2 1975. 277-287.
- Azumaya, G. , Mbuntum, F. and Varadarajan, Kalathoor . On {$M$}-projective and {$M$}-injective modules 59.1 1975. 9-16.
- Varadarajan, Kalathoor . Numerical invariants in homotopical algebra. {II}. {A}pplications 27.4 1975. 935-960.
- Varadarajan, Kalathoor . Numerical invariants in homotopical algebra. {I} 27.4 1975. 901-934.
- Halbhavi, I. G. and Varadarajan, Kalathoor . Gottlieb sets and duality in homotopy theory 27.5 1975. 1042-1055.
- Antonelli, P. and Varadarajan, Kalathoor . A characterization of projective spaces in terms of {$h$}-enclosability 19. 1975. 433-439.
- Varadarajan, Kalathoor . On product decompositions 17.5 1974/75. 739-746.
- Varadarajan, Kalathoor . Some phenomena in homotopical algebra 43. 1974. 272-276.
- Sarath, B. and Varadarajan, Kalathoor . Injectivity of direct sums 1. 1974. 517-530.
- Sarath, B. and Varadarajan, Kalathoor . Injectivity of certain classes of modules 5. 1974. 293-305.
- Varadarajan, Kalathoor . On a certain problem of realization in homotopy theory 54. 1974. 277-291.
- Varadarajan, Kalathoor . On topological span 47. 1972. 249-253.
- Varadarajan, Kalathoor . A note on cobordism 15. 1971. 203-211.
- Varadarajan, Kalathoor . A note on topological parallelizability 22. 1969. 607-609.
- Varadarajan, Kalathoor . Generalised {G}ottlieb groups 33. 1969. 141-164 (1970).
- Swarup, G. A. and Varadarajan, Kalathoor . On some applications of a theorem of {B}rowder-{L}evine-{L}ivesay 66. 1969. 517-519.
- Varadarajan, Kalathoor . On a conjecture of {M}ilnor 13. 1969. 438-447.
- Varadarajan, Kalathoor . Microbundles and disk bundles 6. 1967. 43-48.
- Varadarajan, Kalathoor . Groups for which {M}oore spaces {$M(\pi ,\,1)$} exist 84. 1966. 368-371.
- Varadarajan, Kalathoor . On fibrations and category 88. 1965. 267-273.
- Varadarajan, Kalathoor . Dimension, category and {$K(\pi ,\,n)$} spaces 10. 1961. 755-771.
Degrees
- 1960 - Ph.D. - Columbia University
- 1955 - B.A. Honours - Madras University
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