Microlocal solvability and subellipticity of several classes of pseudodifferantial operators with involutive characteristics

von Popivanov, Petăr R.
Veröffentlicht in International ISAAC Congress (10. : 2015 : Macau) Generalized functions and fourier analysis (2017)

Dostoevski - pitanija na edin matematìk

von Popivanov, Petăr R.
Veröffentlicht 2011

Lorenz transformations and creation of logarithmic singularities to the solutions of some nonstrictly hyperbolic semilinear systems with two space variables

von Popivanov, Petăr R.
Veröffentlicht 2004

030030 Explicit solutions and geometric visualization of the solutions of several classes of nonlinear Schrödinger equations arising in physics

von Popivanov, Petar
Veröffentlicht in International Conference on New Trends in the Applications of Differential Equations in Sciences (8. : 2021 : Sveti Konstantin) Eighth International Conference on New Trends in the Applications of Differential Equations in Sciences (NTADES2021) (2022)

Radial and non-radial solutions for local and non-local Liouville type equations

von Popivanov, Petar
Veröffentlicht in International Conference on New Trends in the Applications of Differential Equations in Sciences (8. : 2021 : Sveti Konstantin) Eighth International Conference on New Trends in the Applications of Differential Equations in Sciences (NTADES2021) (2022)

Degenerate hyperbolic operators which are not locally solvable and do not propagate singularities

von Popivanov, Petar
Veröffentlicht in International Conference on New Trends in the Applications of Differential Equations in Sciences (7. : 2020 : Sveti Konstantin) Seventh International Conference on New Trends in the Applications of Differential Equations in Sciences (NTADES 2020) (2021)

Nonlinear waves : an introduction

von Popivanov, Petăr R.
Veröffentlicht 2011

Nonlinear waves : a geometrical approach

von Popivanov, Petăr R.
Veröffentlicht 2019

Nonlinear waves : a geometrical approach

von Popivanov, Petăr R.
Veröffentlicht 2019

˜Theœ degenerate oblique derivative problem for elliptic and parabolic equations

von Popivanov, Petăr R.
Veröffentlicht 1997

Partial differential equations : approximate solutions in scales of functional spaces

von Gramčev, Todor V.
Veröffentlicht 2000

<<The>> degenerate oblique derivative problem for elliptic and parabolic equations

von Popivanov, Petăr R.
Veröffentlicht 1997

Paradifferential operators and propagation of singularities for non-linear P.D.E.

von Popivanov, Petăr R.
Veröffentlicht 1983

The degenerate oblique derivative problem for elliptic and parabolic equations

von Popivanov, Petăr R.
Veröffentlicht 1997

A general framework for some economic problems with uncertainty and exogenous barriers

von Agliardi, Rosella
Veröffentlicht in Economic modelling (2012)

Partial differential equations : approximate solutions in scales of functional spaces

von Gramčev, Todor V.
Veröffentlicht 2000

Kiril Bratanov : [biobibliografija] = Kyril Bratanov

von Ermenkova, Lidija V.
Veröffentlicht 1984