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1

Strictly singular operators and isomorphisms of Cartesian products of power series spaces

Plamen Borissov Djakov, Süleyman Önal, Murat Yurdakul, Tosun Terzioğlu

Journal:

Archiv der Mathematik

Year:

1998

Language:

english

File:

PDF, 170 KB

english, 1998

2

Spectral triangles of Schrödinger operators with complex potentials

Plamen Djakov, Boris Mityagin

Journal:

Selecta Mathematica

Year:

2003

Language:

english

File:

PDF, 310 KB

english, 2003

3

Smoothness of Schrödinger Operator Potential in the Case of Gevrey Type Asymptotics of the Gaps

Plamen Djakov, Boris Mityagin

Journal:

Journal of Functional Analysis

Year:

2002

Language:

english

File:

PDF, 281 KB

english, 2002

4

Asymptotics of instability zones of the Hill operator with a two term potential

Plamen Djakov, Boris Mityagin

Journal:

Journal of Functional Analysis

Year:

2007

Language:

english

File:

PDF, 301 KB

english, 2007

5

Smoothness of solutions of a nonlinear ode

Plamen Djakov, Boris Mityagin

Journal:

Integral Equations and Operator Theory

Year:

2002

Language:

english

File:

PDF, 658 KB

english, 2002

6

Smoothness of solutions of nonlinear ODE

Plamen Djakov, Boris Mityagin

Journal:

Mathematische Annalen

Year:

2002

Language:

english

File:

PDF, 196 KB

english, 2002

7

Convergence of spectral decompositions of Hill operators with trigonometric polynomial potentials

Plamen Djakov, Boris Mityagin

Journal:

Mathematische Annalen

Year:

2011

Language:

english

File:

PDF, 366 KB

english, 2011

8

Instability Zones of a Periodic 1D Dirac Operator and Smoothness of its Potential

Plamen Djakov, Boris Mityagin

Journal:

Communications in Mathematical Physics

Year:

2005

Language:

english

File:

PDF, 352 KB

english, 2005

9

Modified construction of nuclear Fréchet spaces without basis

Plamen Djakov, Boris Mitiagin

Journal:

Journal of Functional Analysis

Year:

1976

Language:

english

File:

PDF, 857 KB

english, 1976

10

Criteria for existence of Riesz bases consisting of root functions of Hill and 1D Dirac operators

Plamen Djakov, Boris Mityagin

Journal:

Journal of Functional Analysis

Year:

2012

Language:

english

File:

PDF, 325 KB

english, 2012

11

Combinatorial Identities Related to Eigen-Function Decompositions of Hill operators: Open Questions

Plamen Djakov, Boris Mityagin

Journal:

Integral Equations and Operator Theory

Year:

2013

Language:

english

File:

PDF, 160 KB

english, 2013

12

Divergence of spectral decompositions of Hill operators with two exponential term potentials

Djakov, Plamen, Mityagin, Boris

Journal:

Journal of Functional Analysis

Year:

2013

Language:

english

File:

PDF, 250 KB

english, 2013

13

Generalization of a Theorem of Bohr for Bases in Spaces of Holomorphic Functions of Several Complex Variables

Lev Aizenberg, Aydin Aytuna, Plamen Djakov

Journal:

Journal of Mathematical Analysis and Applications

Year:

2001

Language:

english

File:

PDF, 137 KB

english, 2001

14

Asymptotics of instability zones of Hill operators with a two term potential

Plamen Djakov, Boris Mityagin

Journal:

Comptes Rendus Mathematique

Year:

2004

Language:

english

File:

PDF, 91 KB

english, 2004

15

Simple and double eigenvalues of the Hill operator with a two-term potential

Plamen Djakov, Boris Mityagin

Journal:

Journal of Approximation Theory

Year:

2005

Language:

english

File:

PDF, 458 KB

english, 2005

16

Multiplicities of the eigenvalues of periodic Dirac operators

Plamen Djakov, Boris Mityagin

Journal:

Journal of Differential Equations

Year:

2005

Language:

english

File:

PDF, 395 KB

english, 2005

17

Convergence Radii for Eigenvalues of Tri-Diagonal Matrices

James Adduci, Plamen Djakov, Boris Mityagin

Journal:

Letters in Mathematical Physics

Year:

2010

Language:

english

File:

PDF, 225 KB

english, 2010

18

Trace formula and Spectral Riemann Surfaces for a class of tri-diagonal matrices

Plamen Djakov, Boris Mityagin

Journal:

Journal of Approximation Theory

Year:

2006

Language:

english

File:

PDF, 378 KB

english, 2006

19

Spectral gaps of the periodic Schrödinger operator when its potential is an entire function

Plamen Djakov, Boris Mityagin

Journal:

Advances in Applied Mathematics

Year:

2003

Language:

english

File:

PDF, 325 KB

english, 2003

20

The Asymptotics of Spectral Gaps of a 1D Dirac Operator with Cosine Potential

Plamen Djakov, Boris Mityagin

Journal:

Letters in Mathematical Physics

Year:

2003

Language:

english

File:

PDF, 139 KB

english, 2003

21

Equiconvergence of spectral decompositions of 1D Dirac operators with regular boundary conditions

Plamen Djakov, Boris Mityagin

Journal:

Journal of Approximation Theory

Year:

2012

Language:

english

File:

PDF, 426 KB

english, 2012

22

Riesz bases consisting of root functions of 1D Dirac operators

Djakov, Plamen, Mityagin, Boris

Journal:

Proceedings of the American Mathematical Society

Year:

2012

Language:

english

File:

PDF, 261 KB

english, 2012

23

Refined asymptotics of the spectral gap for the Mathieu operator

Berkay Anahtarci, Plamen Djakov

Journal:

Journal of Mathematical Analysis and Applications

Year:

2012

Language:

english

File:

PDF, 270 KB

english, 2012

24

Equiconvergence of spectral decompositions of Hill–Schrödinger operators

Djakov, Plamen, Mityagin, Boris

Journal:

Journal of Differential Equations

Year:

2013

Language:

english

File:

PDF, 646 KB

english, 2013