TY  - INPR
A1  - Tepoyan, Liparit
T1  - The mixed problem for a degenerate operator equation
N2  - We consider a mixed problem for a degenerate differentialoperator equation of higher order. We establish some embedding theorems in weighted Sobolev spaces and show existence and uniqueness of the generalized solution of this problem. We also give a description of the spectrum for the corresponding operator.
T3  - Preprint - (2008) 06 
Y1  - 2008
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-30334
ER  - 
TY  - INPR
A1  - Tepoyan, Liparit
T1  - Degenerated operator equations of higher order
N2  - Content: 1 Introduction 2 The one-dimensional case 2.1 The space Wm sub (α) 2.2 Self-adjoint Equation 2.3 Non-selfadjoint Equation 3 Operator Equation
T3  - Preprint - (2000) 23 
Y1  - 2000
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-25888
ER  - 
TY  - JOUR
A1  - Mahmoudi, Mahdi Hedayat
A1  - Schulze, Bert-Wolfgang
A1  - Tepoyan, Liparit
T1  - Continuous and variable branching asymptotics
JF  - Journal of pseudo-differential operators and applications
N2  - The regularity of solutions to elliptic equations on a manifold with singularities, say, an edge, can be formulated in terms of asymptotics in the distance variable r > 0 to the singularity. In simplest form such asymptotics turn to a meromorphic behaviour under applying the Mellin transform on the half-axis. Poles, multiplicity, and Laurent coefficients form a system of asymptotic data which depend on the specific operator. Moreover, these data may depend on the variable y along the edge. We then have y-dependent families of meromorphic functions with variable poles, jumping multiplicities and a discontinuous dependence of Laurent coefficients on y. We study here basic phenomena connected with such variable branching asymptotics, formulated in terms of variable continuous asymptotics with a y-wise discrete behaviour.
KW  - Asymptotics of solutions
KW  - Weighted edge spaces
KW  - Edge symbols
Y1  - 2015
U6  - https://doi.org/10.1007/s11868-015-0110-3
SN  - 1662-9981
SN  - 1662-999X
VL  - 6
IS  - 1
SP  - 69
EP  - 112
PB  - Springer
CY  - Basel
ER  -