ABSTRACT
A Bromwich-Hansen series is extended to derive the infinite sum of the addition of two incomplete gamma functions in terms of the Hurwitz-Lerch Zeta function. This formula is then used to derive infinite sums and products involving elementary and trigonometric functions. In some cases the infinite products are highly-oscillatory and difficult to evaluate. Symmetric plots are produced to showcase interesting features of special cases of infinite product and summation forms.
Funding statement: This research is supported by NSERC Canada under Grant 504070.
REFERENCES
[1] Chaudhry, M. A.—Zubair, S. M.: On a Class of Incomplete Gamma Functions with Applications, Boca Raton, Chapman & Hall/CRC, 2002.10.1201/9781420036046Search in Google Scholar
[2] Erdéyli, A.—Magnus, W.—Oberhettinger, F.—Tricomi, F. G.: Higher Transcendental Functions, Volume I, McGraw-Hill Book Company, Inc.: New York, NY, USA; Toronto, ON, Canada; London, UK, 1953.Search in Google Scholar
[3] Garunkštis, R.—Kalpokas, J.: Sum of the Lerch zeta-function over nontrivial zeros of the Dirichlet L-function. In: From Arithmetic to Zeta-Functions, Springer, 2016, pp. 141—153.10.1007/978-3-319-28203-9_10Search in Google Scholar
[4] Gelca, R.—Andreescu, T.: Putnam and Beyond, Germany: Springer International Publishing, 2017.10.1007/978-3-319-58988-6Search in Google Scholar
[5] Gradshteyn, I. S.—Ryzhik, I. M.: Tables of Integrals, Series and Products, 6th ed., Academic Press: Cambridge, MA, USA, 2000.Search in Google Scholar
[6] Hansen, E. R.: A Table of Series and Products, Prentice-Hall Series in Automatic Computation, Englewood Cliffs, N. J. etc.: Prentice-Hall, Inc. XVIII, 1975, 523 pp.Search in Google Scholar
[7] Hardy, H.—Wright, E. M.: An Introduction to the Theory of Numbers, 4th ed., Oxford, 1975.Search in Google Scholar
[8] Lewin, L.: Polylogarithms and Associated Functions, North-Holland Publishing Co., New York, 1981.Search in Google Scholar
[9] Luke, Y. L.: The Special Functions and Their Approximations, Elsevier Science, English, 1969, 348 pp.Search in Google Scholar
[10] Melnikov, Y. A.: Green’s Functions and Infinite Products, Birkhuser Boston, 2011.10.1007/978-0-8176-8280-4Search in Google Scholar
[11] Milgram, M. S.: The generalized integro-exponential function, Math. Comp. 44(170) (1985), 443–458.10.1090/S0025-5718-1985-0777276-4Search in Google Scholar
[12] Oldham, K. B.—Myland, J. C.—Spanier, J.: An Atlas of Functions: with Equator, the Atlas Function Calculator, 2nd ed., Springer, New York, NY, USA, 2009.10.1007/978-0-387-48807-3Search in Google Scholar
[13] Olver, F. W. J.—Lozier, D. W.—Boisvert, R. F.—Clark, C. W.: NIST Digital Library of Mathemat-ical Functions, U. S. Department of Commerce, National Institute of Standards and Technology: Washington, DC, USA; Cambridge University Press: Cambridge, UK, 2010.Search in Google Scholar
[14] Prudnikov, A. P.—Brychkov, Y. A.—Marichev, O. I.: Integrals and Series: Special Functions, Vol. 2, Gordon & Breach Science Publishers, New York, 1986.Search in Google Scholar
[15] Reynolds, R.—Stauffer, A.: A method for evaluating definite integrals in terms of special functions with examples, Int. Math. Forum 15(5) (2020), 235–244.10.12988/imf.2020.91272Search in Google Scholar
[16] Reynolds, R.—Stauffer, A.: A note on the infinite sum of the Lerch function, Eur. J. Pure Appl. Math. 15(1) (2022), 158–168.10.29020/nybg.ejpam.v15i1.4137Search in Google Scholar
[17] Rudin, W.: Real and Complex Analysis, 3rd ed., New York, 1987.Search in Google Scholar
[18] Wang, K.: Exponential sums of Lerchs zeta functions, Proc. Amer. Math. Soc. 95(1) (1985), 11–15.10.1090/S0002-9939-1985-0796438-5Search in Google Scholar
[19] Wermuth, E. M. E.: Some elementary properties of infinite products, Amer. Math. Monthly 99(6) (1992), 530–537.10.1080/00029890.1992.11995887Search in Google Scholar
© 2023 Mathematical Institute Slovak Academy of Sciences
Articles in the same Issue
- Parameters in Inversion Sequences
- On the Pecking Order Between Those of Mitsch and Clifford
- A Note on Cuts of Lattice-Valued Functions and Concept Lattices
- Trigonometric Sums and Riemann Zeta Function
- Notes on the Equation d(n) = d(φ(n)) and Related Inequalities
- Harmony of Asymmetric Variants of the Filbert and Lilbert Matrices in q-form
- Maximal Density and the Kappa Values for the Families {a, a + 1, 2a + 1, n} and {a, a + 1, 2a + 1, 3a + 1, n}
- Extensions in Time Scales Integral Inequalities of Jensen’s Type via Fink’s Identity
- A Note on Fractional Simpson Type Inequalities for Twice Differentiable Functions
- Extended Bromwich-Hansen Series
- Iterative Criteria for Oscillation of Third-Order Delay Differential Equations with p-Laplacian Operator
- Vallée-Poussin Theorem for Equations with Caputo Fractional Derivative
- On Oscillatory Behavior of Third Order Half-Linear Delay Differential Equations
- On Existence and Uniqueness of Solutions for Ordinary Differential Equations in Locally Convex Topological Linear Spaces
- Bounds on Blow-Up Time for a Higher-Order Non-Newtonian Filtration Equation
- On a Solvable System of Difference Equations in Terms of Generalized Fibonacci Numbers
- The Smallest and the Largest Families of Some Classes of 𝒜-Continuous Functions
- Type II Exponentiated Half-Logistic Gompertz-G Family of Distributions: Properties and Applications
- Strong Consistency of Least-Squares Estimators in the Simple Linear Errors-in-Variables Regression Model with Widely Orthant Dependent Random Variables
Articles in the same Issue
- Parameters in Inversion Sequences
- On the Pecking Order Between Those of Mitsch and Clifford
- A Note on Cuts of Lattice-Valued Functions and Concept Lattices
- Trigonometric Sums and Riemann Zeta Function
- Notes on the Equation d(n) = d(φ(n)) and Related Inequalities
- Harmony of Asymmetric Variants of the Filbert and Lilbert Matrices in q-form
- Maximal Density and the Kappa Values for the Families {a, a + 1, 2a + 1, n} and {a, a + 1, 2a + 1, 3a + 1, n}
- Extensions in Time Scales Integral Inequalities of Jensen’s Type via Fink’s Identity
- A Note on Fractional Simpson Type Inequalities for Twice Differentiable Functions
- Extended Bromwich-Hansen Series
- Iterative Criteria for Oscillation of Third-Order Delay Differential Equations with p-Laplacian Operator
- Vallée-Poussin Theorem for Equations with Caputo Fractional Derivative
- On Oscillatory Behavior of Third Order Half-Linear Delay Differential Equations
- On Existence and Uniqueness of Solutions for Ordinary Differential Equations in Locally Convex Topological Linear Spaces
- Bounds on Blow-Up Time for a Higher-Order Non-Newtonian Filtration Equation
- On a Solvable System of Difference Equations in Terms of Generalized Fibonacci Numbers
- The Smallest and the Largest Families of Some Classes of 𝒜-Continuous Functions
- Type II Exponentiated Half-Logistic Gompertz-G Family of Distributions: Properties and Applications
- Strong Consistency of Least-Squares Estimators in the Simple Linear Errors-in-Variables Regression Model with Widely Orthant Dependent Random Variables