Title Dr. First Name Sachi Last Name Srivastava
Designation Professor
Department Department of Mathematics
Email ssrivastava@maths.du.ac.in
Webpage
Phone.no 011-24157282
Employement Info
Employee Type Nature Of Employment
Teaching Permanent
Educational Qualifications
Degree/Certification Name Institution Year of Completion
Ph.D. - D.Phil Oxford
Research Publications
Title of Article Type of Publication Name of Journal ISSN Journal Volume Year Link to Article DOI (Digital Object Identifier)
Eventual positivity, perturbations and delay semigroups Research Papers in Web of Science Listed Journals Positivity 29 (12) 2024 https://doi.org/10.1007/s11117-024-01105-9
Quantum Extensions of Classical Jacobi Semigroups Research Papers in Web of Science Listed Journals Semigroup Forum 109 2024 https://doi.org/10.1007/s00233-024-10481-3 https://doi.org/10.1007/s00233-024-10481-3
Weighted and un weighted composition operators close to isometery. Research Papers in Web of Science Listed Journals Mediterranean Journal of Mathematics 21 2024
Real interpolation of functions with applications to accretive operators on Banach spaces. Research Papers in Web of Science Listed Journals Journal of Differential Equations 402 2024 10.1016/j.jde.2024.05.024

Domination of semigroups on standard forms of von Neumann algebras Research Papers in Web of Science Listed Journals Archiv der Mathematik ISSN 0003-889X (print) ISSN 1420-8938 (electronic) 121 https://rdcu.be/dv9k1 https://doi.org/10.1007/s00013-023-01946-y
Quantum dynamical semigroups and stability Research Papers in Web of Science Listed Journals J. Math. Anal. Appl. 516 https://www.sciencedirect.com/science/article/abs/pii/S0022247X22005066?via%3Dihub https://doi.org/10.1016/j.jmaa.2022.126492
A class of invariant subspaces of weighted composition operators on the Hardy-Hilbert space Research Papers in Web of Science Listed Journals Anal. Math. no. 4 https://link.springer.com/article/10.1007/s10476-022-0134-x 10.1007/s10476-022-0134-x
On extension of Beurling Helson Lowdenslager Theorem Research Papers in Web of Science Listed Journals Advances in Operator Theory 2538-225X(electronic), 2662-2009(print) 6 https://link.springer.com/article/10.1007/s43036-021-00158-x#article-info https://doi.org/10.1007/s43036-021-00158-x
A quantum Laguerre semigroup Research Papers in Web of Science Listed Journals Indian Journal of Pure and Applied Mathematics 0975-7465(electronic), 0019-5588(print) 52 https://link.springer.com/article/10.1007/s13226-021-00029-4 https://doi.org/10.1007/s13226-021-00029-4
Strong and polynomial stability for delay semigroups Research Papers in Web of Science Listed Journals Journal of Evolution Equations 1424-3202 (electronic), 1424-3199 (print) 21 https://link.springer.com/article/10.1007/s00028-020-00588-9 https://doi.org/10.1007/s00028-020-00588-9
Professional Development Programmes
Programme Title Sponsoring Institution Organizing Institution Role Type of Programme
Mathematics with an Emphasis on Topology, Analysis and Applications for University and College teachers. Centre for Professional Development in Higher Education (CPDHE), UGC-HRDC, University of Delhi Resource Person Faculty Development Programmes
Workshop for Mathematics teachers Delhi Public Schools Society, HRDC, Greater NOIDA, India Resource Person Faculty Development Programmes
Honors and Awards
Name of the Award Awarding Body Award Category Level Award Date
Indian National Science Academy Teachers Award Indian National Science Academy Academic National 20-10-2021
Talk Poster Presented
Name of the Activity Role Date of Activity
Talk Title: Stability and rates of decay for delay semigroups Conference: NEW CHALLENGES IN OPERATOR SEMIGROUPS Oxford, July 18-22, 2022 Speaker 21-07-2022
Lectures on Operator Semigroups Speaker 12-09-2022
I attended as an INSA Teacher Awardee. The award was presented to me here. Participant 16-12-2022
Invited Speaker. Talk Title: Polynomial Stability, Delay Semigroups and Damped Wave Equations Speaker 28-02-2023
Presentation : Asymptotics of solutions of linear and non-linear delay differential equations Speaker 28-07-2023
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