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  1. No Access

    Chapter

    Prime Difference Champions

    A Prime Difference Champion (PDC) for primes up to x is defined to be any element of the set of one or more differences that occur most frequently among all positive differences between primes ≤ x. Assuming an ap...

    S. Funkhouser, D. A. Goldston, D. Sengupta… in Discrete Mathematics and Applications (2020)

  2. No Access

    Article

    Carbon nanotube synthesis from propane decomposition on a pre-treated Ni overlayer

    Growth of carbon nanotubes (CNTs) was performed by atmospheric pressure chemical vapour deposition (APCVD) of propane on Si(111) with a pre-treated Ni overlayer acting as a catalyst. Prior to the growth of CNT...

    J. Sengupta, S. K. Panda, C. Jacob in Bulletin of Materials Science (2009)

  3. No Access

    Chapter

    On the Sign Changes of Hecke Eigenvalues

    In this paper, we prove quantitative theorems for the number of sign changes for the sequences {λ(p)} and {λ(n)} where λ(n) are the normalised Hecke eigenvalues of the primitive holomorphic cusp form f. Also we p...

    Y. J. Choie, A. Sankaranarayanan, J. Sengupta in Number Theory and Applications (2009)

  4. No Access

    Article

    The use of water cooling during the continuous casting of steel and aluminum alloys

    In both continuous casting of steel slabs and direct chill (DC) casting of aluminum alloy ingots, water is used to cool the mold in the initial stages of solidification, and then below the mold, where it is in...

    J. Sengupta, B. G. Thomas, M. A. Wells in Metallurgical and Materials Transactions A (2005)

  5. No Access

    Article

    On the development of a three-dimensional transient thermal model to predict ingot cooling behavior during the start-up phase of the direct chill-casting process for an AA5182 aluminum alloy ingot

    The control of the heat transfer during the start-up phase of the direct-chill (DC) casting process for aluminum sheet ingots is critical from the standpoint of defect formation. Process control is difficult b...

    J. Sengupta, S. L. Cockcroft, D. M. Maijer… in Metallurgical and Materials Transactions B (2004)

  6. No Access

    Chapter

    Some Aspects of the Central Critical Value of Automorphic L-functions

    The central critical value of automorphic L-functions has been the subject of intensive investigation in recent times. It has several aspects like positivity, algebraicity, growth properties with respect to natur...

    J. Sengupta in Current Trends in Number Theory (2002)

  7. No Access

    Article

    Characteristic twists of a Dirichlet series for Siegel cusp forms

    W. Kohnen, A. Krieg, J. Sengupta in manuscripta mathematica (1995)

  8. No Access

    Article

    Relative preferences of carcinogenic aromatic nitrenium ions for adduct formation with different DNA base sites: Theoretical elucidations

    The ultimate carcinogenic form of aromatic amines, the nitrenium ions, interact with DNA bases in order to exert their carcinogenic effects.

    J. Sengupta, R. H. Duncan Lyngdoh in Journal of Biological Physics (1995)

  9. Article

    On Fourier coefficients of Maass cusp forms in 3-dimensional hyperbolic space

    In this article we establish the analogue of a theorem of Kuznetsov (theorem 6 of [3]) in the case of 3-dimensional hyperbolic space. We also consider a generalization of this result for higher dimensional hyp...

    S. Raghavan, J. Sengupta in Proceedings Mathematical Sciences (1994)

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    Article

    On the sum ∑d(n)σα(n+N)

    U. Balakrishnan, J. Sengupta in manuscripta mathematica (1990)

  11. No Access

    Article

    Karyotype stability in long-term callus derived plants ofCrepis tectorum L.

    The study of in vitro growth of Crepis tectorum revealed 100 % callusing and 40 % plantlet regeneration. The root and leaf used as explants showed the normal diploid (2n=8) chromosome constitution. In one mont...

    J. Sengupta, S. Jha, S. Sen in Biologia Plantarum (1988)

  12. No Access

    Article

    Hamartoma of the nose

    A Hamartoma of the Nose is being reported.

    P. B. Mookherji, H. Bora, H. Hazra, J. Sengupta in Indian Journal of Otolaryngology (1980)