Publisher
Springer Science and Business Media LLC
Subject
General Mathematics,Analysis
Reference38 articles.
1. R. Beals, Characterization of pseudodifferential operators and applications, Duke Math. J. 44 (1977), 45–57.
2. E. Bernardi, A. Bove and V. Petkov, Cauchy problem for effectively hyperbolic operators with triple characteristics of variable multiplicity, J. Hyperbolic Differ. Equ. 12 (2015), 535–579.
3. E. Bernardi and T. Nishitani, Counterexamples to C∞well posedness for some hyperbolic operators with triple characteristics, Proc. Japan Acad. Ser. A Math. Sci. 91 (2015), 19–24.
4. M. D. Bronshtein, Smoothness of roots of polynomials depending on parameters, Sib. Mat. Zh. 20 (1979), 493–501
5. M. D. Bronshtein, Smoothness of roots of polynomials depending on parameters, English translation: Sib. Math. J. 20 (1980), 347–352.