Abstract
In this paper we have studied an inhomogeneous Riemann boundary value problem with a finite index and a boundary condition on the real axis for one generalized Cauchy–Riemann equation with singular coefficients. To solve this problem, we derived a structural formula for the general solution to the generalized equation and conducted a complete study of the solvability of the Riemann boundary value problem of the theory of analytic functions with an infinite index of logarithmic order. Based on the results of this study, we derived a formula for a general solution and studied the existence and the number of solutions to boundary value problems for generalized analytical functions.
REFERENCES
L. G. Mikhailov, New Classes of Special Integral Equations and Their Application to Differential Equations with Singular Coefficients (Izd-vo Akad. Nauk Tadzhikskoi SSR, Dushanbe, 1963).
N. R. Radzhabov, Integral Representation and Boundary Value Problems for Some Differential Equations with Singular Curve or Singular Surfaces (Izd-vo Tadzhikskogo Gos. Univ., Dushanbe, 1980).
N. R. Radzhabov, “Integral representations and boundary value problems for the generalized Cauchy–Riemann system with a singular line,” Sov. Math., Dokl. 26, 603–607 (1982).
N. R. Radzhabov and A. B. Rasulov, “Integral representations and boundary value problems for a class of systems of differential equations of elliptic type with singular manifolds,” Differ. Uravn. 25, 1279–1981 (1989).
Z. D. Usmanov, Generalized Cauchy–Riemann Systems with Singular Point (Izd-vo Akad. Nauk Tadzhikskoi SSR, Dushanbe, 1993).
H. Begehr and D.-Q. Dai, “On continuous solutions of a generalized Cauchy–Riemann system with more than one singularity,” J. Differ. Equations 196, 67–90 (2004). https://doi.org/10.1016/j.jde.2003.07.013
A. Meziani, “Representation of solutions of a singular Cauchy–Riemann equation in the plane,” Complex Var. Elliptic Equations 53, 1111–1130 (2008). https://doi.org/10.1080/17476930802509239
A. B. Rasulov and A. P. Soldatov, “Boundary value problem for a generalized Cauchy–Riemann equation with singular coefficients,” Differ. Equations 52, 616–629 (2016). https://doi.org/10.1134/S0012266116050086
Yu. S. Fedorov and A. B. Rasulov, “Hilbert type problem for a Cauchy–Riemann equation with singularities on a circle and at a point in the lower-order coefficients,” Differ. Equations 57, 127–131 (2021). https://doi.org/10.1134/S0012266121010122
A. B. Rasulov, “The Riemann problem on a semicircle for a generalized Cauchy–Riemann system with a singular line,” Differ. Equations 40, 1364–1366 (2004). https://doi.org/10.1007/s10625-005-0015-7
A. B. Rasulov, “Integral representations and the linear conjugation problem for a generalized Cauchy–Riemann system with a singular manifold,” Differ. Equations 36, 306–312 (2000). https://doi.org/10.1007/BF02754217
N. V. Govorov, Riemann Boundary Value Problem with Infinite Index (Nauka, Moscow, 1986).
V. N. Monakhov and E. V. Semenko, Boundary Value Problems and Pseudodifferential Operators on Riemann Surfaces (Fizmatlit, Moscow, 2003).
I. V. Ostrovskii, “Homogeneous Riemann boundary value problem with infinite index on curvilinear contour, I,” Teoriya Funktsii, Funktsional’nyi Anal. Ikh Prilozheniya, No. 56, 95–105 (1991).
P. G. Yurov, “Inhomogeneous Riemann boundary value problem with infinite index of logarithmic order α ≥ 1,” in Proc. All-Union Conf. on Boundary Value Problems (Kazan, 1970), pp. 279–284.
P. Yu. Alekna, “Inhomogeneous Riemann boundary value problem with infinite index of logarithmic order on half-plane,” Litovskii Mat. Sb., No. 3, 5–18 (1974).
F. D. Gakhov, Boundary Value Problems (Nauka, Moscow, 1977).
I. M. Mel’nik, “Riemann boundary value problem with discontinuous coefficients,” Izv. Vyssh. Uchebn. Zaved., Mat., No. 2, 158–166 (1959).
I. N. Vekua, Generalized Analytical Functions (Nauka, Moscow, 1988).
R. B. Salimov and E. N. Karabasheva, “The new approach to solving the Riemann boundary value problem with infinite index,” Izv. Saratov Univ. Math. Mech. Inf. 14, 155–165 (2014). https://doi.org/10.18500/1816-9791-2014-14-2-155-165
A. G. Alekhno, “Hilbert boundary value problem with infinite index of logarithmic order,” Dokl. Nats. Akad. Nauk Belarusi 53 (2), 5–10 (2009).
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Shabalin, P.L., Faizov, R.R. The Riemann Problem in a Half-Plane for Generalized Analytic Functions with a Singular Line. Russ Math. 67, 66–75 (2023). https://doi.org/10.3103/S1066369X23030052
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DOI: https://doi.org/10.3103/S1066369X23030052