Isaac Scientific Publishing

New Horizons in Mathematical Physics

Quantum Integration Using Dirac’s Delta Function

Download PDF (611.5 KB) PP. 1 - 13 Pub. Date: March 17, 2020

DOI: 10.22606/nhmp.2020.41001

Author(s)

  • Reza Ahangar*
    Department of Mathematics, Texas A & M University - Kingsville, United States

Abstract

A historical review of Dirac’s Delta functions is presented. It is developed as a generalized function in the space Bochner-Lebesgue summable function. Further properties of the absolute, asymptotic continuity, and differentiability of Bochner summable functions is also investigated. We can generalize the equivalent of Bochner-Stieltjes summability and absolute continuity, asymptotic continuity, and differentiability. Dirac Delta sequence of functions will be presented as a generalized function with a convolution operator where we use it as a charaterization of compactness in the space of Bochner summable functions. We will propose a perturbed differential equation such that the perturbation function is a sequence Dirac’s Delta function which is a Bochner summable function.

Keywords

Lebesgue Bochner integration, Dirac’s Delta function, Compact Operators, Space of Summable Functions, Absolute and Asymptotic Continuity and Differentiability, Nonlinear Operator Differential Equations, impulsive perturbation.

References

[1] Dannon 2012, Dannon H. Vic, "The Delta Function", Guage Institute Journal, Volume 8, No.1, Feb. 2012.

[2] Dirac 1935, DIrac P.A. M. "The Principle of Quantum Mechanics", Second Edition, Oxford University Press, 1935.

[3] Schwartz 1966, Schwartz Laurent, "Mathematics for Physical Sciences", Addison Wesley, 1966.

[4] Bogdanowicz M.W. ”An Approach to the Theory of Lp Spaces of Lebesgue-Bochner Summable Functions and Generalized Lebesgue-Bochner-Stieltjes Integral” , Bulletin de L’academie Polonaise des Sciences”, Serje des sciences math., astr. et phys.-Vol. XIII, No. 11-12, 1965.

[5] Bogdanowicz M. W., ”A Generalization of the Lebesgue-Bochner-Stieltjes and New Approach to the Theory of Integration”, Proceedings of the National Academy of Sciences Vol. 53, No. 3, pp. 492-498. March, 1965.

[6] Ahangar R. R., " Existence of Optimal Controls for Generalized Dynamical Systems Satisfying Nonanticipating Operator Differential Equations ", A Dissertation submitted to the School of Arts & Sciences, The Catholic University of America, Washington D.C., 1986.

[7] Ahangar, R. ”Nonanticipating Dynamical Model and Optimal Control”, Applied Mathematics Letter, vol. 2, No. 1, pp.15-18, 1989.

[8] Ahangar, R. R. “Optimal Control Solution to Nonlinear Causal Operator Systems with Target State”, FCS (Foundations of Computer Science), WORLD COMP 2008, pp. 218-223.

[9] Bogdan, V.M., (formerly: W.M. Bogdanowicz), “An Approach to the Theory of Lebesgue-Bochner Measurable Functions and to the Theory of Measure,” Math. Annalen, vol. 164, p. 251-269, 1966.

[10] Bogdanowicz M.W. ”An Approach to the Theory of Lp Spaces of Lebesgue-Bochner Summable Functions and Generalized Lebesgue-Bochner-Stieltjes Integral” , Bulletin de L’academie Polonaise des Sciences”, Serje des sciences math., astr. et phys.-Vol. XIII, No. 11-12, 1965.

[11] Bogd67, Bogdan, V.M., (formerly: W.M., Bogdanowicz), “An Approach to the Theory of Integration and Theory of Lebesgue-Bochner Measurable Functions on Locally Compact Spaces,” Math. Annalen, vol. 171, p. 219-238, 1967.

[12] Bogdanowicz M. W., ”A Generalization of the Lebesgue-Bochner-Stieltjes and New Approach to the Theory of Integration”, Proceedings of the National Academy of Sciences Vol. 53, No. 3, pp. 492-498. March, 1965.

[13] Ahangar Reza: “Computation and Simulation of Langevin Stochastic Differential Equation”, The Journal of Combinatorial Mathematics and Combinatorial Computing, JCMCC 86, (2013), pp. 183-198.

[14] Ahangar, R. R, Singh S., Wang, R. “Dynamic Behavior of Perturbed Logistic Model”, The Journal of Combinatorial Mathematics and Combinatorial Computing, (JCMCC 74, (2010), pp.295-311.

[15] Langevin, P., Sur la theorie du mouvement Brownien. C. R. Acad. Sci. Paris 146 (1908), 530-533.

[16] Chandrasekhar, S., Stochastic Problems in Physics and Astronomy. Rev. Modern Phys. 15 (1943), 1-89.

[17] Doob, J. L., ”The Brownian Movement and Stochastic Equations”. Ann of Math. 43 (1942), 351-369.

[18] Kashyap R. L. and Ramachandra Rao, ”Dynamic Stochastic Models from Empirical Data”. Academic Press, 1976. Mathematics and Engineering Vol. 122.

[19] Arnold, L. ”Stochastic Differential Equations: Theory and Application”, John Wiley, 1974.

[20] Bharucha-Reid A. T. ”Random Integral Equations”, , Academic Press, 1972.

[21] McShane E. J., “Unified Integration”, Academic Press,1983.

[22] McShane E. J., “Stochastic Calculus and Stochastic Models”, Academic Press, 1974.

[23] Bogdan, V.M., (formerly: W.M. Bogdanowicz), “Fubini Theorems for Generalized Lebesgue-Bochner-Stieltjes Integral,” (Appeared as supplement to vol. 41, 1965), Proceedings of the Japan Academy, vol. 42, p. 979-983, 1966.

[24] Natanson I. P. ” Theory of Functions of a Real Variable”, Translated from Russia by Boron L. F. and Hewitt E., 1955. Fredrick Ungar Publishing Co.

[25] Ries55, Riesz, F., and Sz-Nagy, B., “Functional Analysis,” (Translated from the second French edition by Leo F. Boron), Frederick Ungar Publishing Company, New York, 1955.