Levenshtam, V. B. Asymptotic problems of reconstructing a high-frequency source of a wave equation. (English. Russian original) Zbl 1487.35449 Math. Notes 111, No. 4, 636-642 (2022); translation from Mat. Zametki 111, No. 4, 624-630 (2022). MSC: 35R30 35L05 35L15 PDFBibTeX XMLCite \textit{V. B. Levenshtam}, Math. Notes 111, No. 4, 636--642 (2022; Zbl 1487.35449); translation from Mat. Zametki 111, No. 4, 624--630 (2022) Full Text: DOI
Levenshtam, V. B. Parabolic equations with large parameter. Inverse problems. (English. Russian original) Zbl 1448.35576 Math. Notes 107, No. 3, 452-463 (2020); translation from Mat. Zametki 107, No. 3, 412-425 (2020). MSC: 35R30 35B27 35K90 35K20 PDFBibTeX XMLCite \textit{V. B. Levenshtam}, Math. Notes 107, No. 3, 452--463 (2020; Zbl 1448.35576); translation from Mat. Zametki 107, No. 3, 412--425 (2020) Full Text: DOI
Babich, P. V.; Levenshtam, V. B. Recovery of a rapidly oscillating absolute term in the multidimensional hyperbolic equation. (English. Russian original) Zbl 1516.35489 Math. Notes 104, No. 4, 489-497 (2018); translation from Mat. Zametki 104, No. 4, 505-515 (2018). MSC: 35R30 35L20 PDFBibTeX XMLCite \textit{P. V. Babich} and \textit{V. B. Levenshtam}, Math. Notes 104, No. 4, 489--497 (2018; Zbl 1516.35489); translation from Mat. Zametki 104, No. 4, 505--515 (2018) Full Text: DOI