Ospanov Kordan Nauryzkhanovich

Publications in Math-Net.Ru

1. Correct and coercive solvability conditions for a degenerate high order differential equation
   
   Eurasian Math. J., 14:4 (2023),  9–14
2. The solvability results for the third-order singular non-linear differential equation
   
   Eurasian Math. J., 10:4 (2019),  85–91
3. Maximal regularity estimates for higher order differential equations with fluctuating coefficients
   
   Eurasian Math. J., 10:2 (2019),  65–74
4. Discreteness and estimates of spectrum of a first order difference operator
   
   Eurasian Math. J., 9:2 (2018),  89–94
5. Factorization Properties of Subdiagonal Algebras
   
   Funktsional. Anal. i Prilozhen., 50:2 (2016),  77–81
6. On outer elements of noncommutative Orlicz–Hardy spaces
   
   Izv. Vyssh. Uchebn. Zaved. Mat., 2016, no. 12,  19–25
7. Some inequalities for second order differential operators with unbounded drift
   
   Eurasian Math. J., 6:2 (2015),  63–74
8. Solvability conditions for the first order elliptic systems on the plane
   
   Eurasian Math. J., 3:1 (2012),  139–142
9. On approximate properties of solutions of a nonlinear mixed-type equation
   
   Fundam. Prikl. Mat., 12:5 (2006),  95–107
10. On the nonlinear generalized Cauchy–Riemann system on the whole plane
    
    Sibirsk. Mat. Zh., 38:2 (1997),  365–371
11. A generalized Cauchy–Riemann system with nonsmooth coefficients
    
    Izv. Vyssh. Uchebn. Zaved. Mat., 1989, no. 3,  48–56
12. Boundary value problems for the generalized Cauchy–Riemann system with nonsmooth coefficients
    
    Dokl. Akad. Nauk SSSR, 283:1 (1985),  46–49


13. International conference “Actual Problems of Analysis, Differential Equations and Algebra”, dedicated to the 15th anniversary of the Eurasian Mathematical Journal (January 7-11, 2025, Astana, Kazakhstan). Second information letter
    
    Eurasian Math. J., 15:3 (2024),  94–98
14. International conference “Actual problems of analysis, differential equations and algebra” dedicated to the 15th anniversary of the Eurasian Mathematical Journal (January 7–11, 2025, Astana, Kazakhstan). First information letter
    
    Eurasian Math. J., 15:2 (2024),  101–102
15. International Conference "Actual Problems of Analysis, Differential Equations and Algebra" (EMJ-2019), dedicated to the 10th anniversary of the Eurasian Mathematical Journal
    
    Eurasian Math. J., 11:1 (2020),  10–12
16. Good news: EMJ is now an SJR Q2 journal
    
    Eurasian Math. J., 10:4 (2019),  10–13
17. International Conference “Actual problems of analysis, differential equations and algebra” (October 16–19, 2019, Astana, Kazakhstan)
    
    Eurasian Math. J., 9:4 (2018),  99–100
18. Correction: “Boundary value problems for the generalized Cauchy–Riemann system with nonsmooth coefficients”
    
    Dokl. Akad. Nauk SSSR, 288:2 (1986),  264