Fedorov, Yu. S.; Rasulov, A. B. Hilbert type problem for a Cauchy-Riemann equation with singularities on a circle and at a point in the lower-order coefficients. (English. Russian original) Zbl 1460.35248 Differ. Equ. 57, No. 1, 127-131 (2021); translation from Differ. Uravn. 57, No. 1, 140-144 (2021). MSC: 35Q15 35Q35 PDFBibTeX XMLCite \textit{Yu. S. Fedorov} and \textit{A. B. Rasulov}, Differ. Equ. 57, No. 1, 127--131 (2021; Zbl 1460.35248); translation from Differ. Uravn. 57, No. 1, 140--144 (2021) Full Text: DOI
Zvyagin, V. G.; Zvyagin, A. V.; Nguyen Minh Hong Optimal feedback control for a model of motion of a nonlinearly viscous fluid. (English. Russian original) Zbl 1460.35304 Differ. Equ. 57, No. 1, 122-126 (2021); translation from Differ. Uravn. 57, No. 1, 135-139 (2021). MSC: 35Q35 76A05 93B52 35A01 PDFBibTeX XMLCite \textit{V. G. Zvyagin} et al., Differ. Equ. 57, No. 1, 122--126 (2021; Zbl 1460.35304); translation from Differ. Uravn. 57, No. 1, 135--139 (2021) Full Text: DOI
Akhtyamov, A. M. Nonexistence of degenerate boundary conditions in a spectral problem. (English. Russian original) Zbl 1465.34029 Differ. Equ. 57, No. 1, 117-121 (2021); translation from Differ. Uravn. 57, No. 1, 130-134 (2021). Reviewer: Andreas Fleige (Dortmund) MSC: 34B09 34B07 34L05 PDFBibTeX XMLCite \textit{A. M. Akhtyamov}, Differ. Equ. 57, No. 1, 117--121 (2021; Zbl 1465.34029); translation from Differ. Uravn. 57, No. 1, 130--134 (2021) Full Text: DOI
Assanova, A. T. Unique solvability of an initial-boundary value problem for a system of third-order partial differential equations. (English. Russian original) Zbl 1458.35140 Differ. Equ. 57, No. 1, 111-116 (2021); translation from Differ. Uravn. 57, No. 1, 125-129 (2021). MSC: 35G46 35A01 35A02 PDFBibTeX XMLCite \textit{A. T. Assanova}, Differ. Equ. 57, No. 1, 111--116 (2021; Zbl 1458.35140); translation from Differ. Uravn. 57, No. 1, 125--129 (2021) Full Text: DOI
Karelin, A. A.; Tarasenko, A. A. Riemann boundary value problems with reflection on the real axis and related singular integral equations. (English. Russian original) Zbl 07314331 Differ. Equ. 57, No. 1, 100-110 (2021); translation from Differ. Uravn. 57, No. 1, 114-124 (2021). MSC: 47G10 45E05 45E10 PDFBibTeX XMLCite \textit{A. A. Karelin} and \textit{A. A. Tarasenko}, Differ. Equ. 57, No. 1, 100--110 (2021; Zbl 07314331); translation from Differ. Uravn. 57, No. 1, 114--124 (2021) Full Text: DOI
Sattorov, E. N.; Ermamatova, F. E. Cauchy problem for a generalized Cauchy-Riemann system in a multidimensional bounded spatial domain. (English. Russian original) Zbl 1508.65152 Differ. Equ. 57, No. 1, 86-99 (2021); translation from Differ. Uravn. 57, No. 1, 87-99 (2021). MSC: 65N20 65N21 65J20 35R25 PDFBibTeX XMLCite \textit{E. N. Sattorov} and \textit{F. E. Ermamatova}, Differ. Equ. 57, No. 1, 86--99 (2021; Zbl 1508.65152); translation from Differ. Uravn. 57, No. 1, 87--99 (2021) Full Text: DOI
Omuraliev, A. S.; Abylaeva, E. D.; Esengul kyzy, P. Parabolic problem with a power-law boundary layer. (English. Russian original) Zbl 1458.35033 Differ. Equ. 57, No. 1, 75-85 (2021); translation from Differ. Uravn. 57, No. 1, 76-86 (2021). MSC: 35B25 35K20 PDFBibTeX XMLCite \textit{A. S. Omuraliev} et al., Differ. Equ. 57, No. 1, 75--85 (2021; Zbl 1458.35033); translation from Differ. Uravn. 57, No. 1, 76--86 (2021) Full Text: DOI
Glushak, A. V. Solvability of degenerating hyperbolic differential equations with unbounded operator coefficients. (English. Russian original) Zbl 1458.35277 Differ. Equ. 57, No. 1, 60-74 (2021); translation from Differ. Uravn. 57, No. 1, 61-75 (2021). MSC: 35L90 35L80 35L15 PDFBibTeX XMLCite \textit{A. V. Glushak}, Differ. Equ. 57, No. 1, 60--74 (2021; Zbl 1458.35277); translation from Differ. Uravn. 57, No. 1, 61--75 (2021) Full Text: DOI
Shcheglova, A. A. Feedback elimination of impulse terms from the solutions of differential-algebraic equations. (English. Russian original) Zbl 1458.93087 Differ. Equ. 57, No. 1, 41-59 (2021); translation from Differ. Uravn. 57, No. 1, 43-60 (2021). MSC: 93B52 93C27 93B05 93C05 93B25 93C15 PDFBibTeX XMLCite \textit{A. A. Shcheglova}, Differ. Equ. 57, No. 1, 41--59 (2021; Zbl 1458.93087); translation from Differ. Uravn. 57, No. 1, 43--60 (2021) Full Text: DOI
Filipkovskaya, M. S. Global solvability of time-varying semilinear differential-algebraic equations, boundedness and stability of their solutions. I. (English. Russian original) Zbl 1466.34014 Differ. Equ. 57, No. 1, 19-40 (2021); translation from Differ. Uravn. 57, No. 1, 22-42 (2021). Reviewer: Gabriel Thomas (Grenoble) MSC: 34A09 93D05 15A22 34A30 34C11 PDFBibTeX XMLCite \textit{M. S. Filipkovskaya}, Differ. Equ. 57, No. 1, 19--40 (2021; Zbl 1466.34014); translation from Differ. Uravn. 57, No. 1, 22--42 (2021) Full Text: DOI
Polyakov, D. M. Nonlocal perturbation of a periodic problem for a second-order differential operator. (English. Russian original) Zbl 1462.34118 Differ. Equ. 57, No. 1, 11-18 (2021); translation from Differ. Uravn. 57, No. 1, 14-21 (2021). Reviewer: Erdogan Sen (Tekirdağ) MSC: 34L20 34L10 34D10 PDFBibTeX XMLCite \textit{D. M. Polyakov}, Differ. Equ. 57, No. 1, 11--18 (2021; Zbl 1462.34118); translation from Differ. Uravn. 57, No. 1, 14--21 (2021) Full Text: DOI
Kritskov, L. V.; Ioffe, V. L. Spectral properties of the Cauchy problem for a second-order operator with involution. (English. Russian original) Zbl 1462.34091 Differ. Equ. 57, No. 1, 1-10 (2021); translation from Differ. Uravn. 57, No. 1, 4-13 (2021). MSC: 34K08 PDFBibTeX XMLCite \textit{L. V. Kritskov} and \textit{V. L. Ioffe}, Differ. Equ. 57, No. 1, 1--10 (2021; Zbl 1462.34091); translation from Differ. Uravn. 57, No. 1, 4--13 (2021) Full Text: DOI