### Call for papers

** First Announcement**

**We are pleased to invite you to participate in the International Conference on “**

*Actual problems of differential equations and their applications*” , which will be held at the National University of Uzbekistan. december 15-17, 2017, Tashkent, Uzbekistan.

**The purpose of the scientific conference ** **is to discuss the modern status and prospects for the development of the main directions of the theory of partial differential equations and mathematical physics and their applications**.

**Location of conference:** ** ****Faculty of Mathematics. National University of Uzbekistan.**

** Universitetskaya-4 str. Vuzgorodok. Tashkent.Uzbekistan. 100125.**

** Phone: (871)246-84-29, +998974775277, +998903209610. Fax: (871)227-15-54**

** ****Languages of conference: **** Uzbek, Russian, English.**

**Program of the conference: **** ****Scientific program of the conference cover following directions: PDE, an equations of mathematical physics, ODE, dynamical systems, operator theory, spectral theory, functional analysis and theory of functions, approximation theory, numerical methods and mathematical modeling****.**

**The scientific program will consist of the plenary reports 40 minutes, invited lecturers 30 minutes and 20 minute communications in addition poster presentations.**

**Sections of the conference:**

**Degenerating and mixed type equations****Non-classical problems of the theory PDEs****Ordinary differential equations and dynamical systems****Spectral theory of operators and related problems of analysis****Non-correct and inverse problems****Methods of functional analysis and algebra on the theory of differential equations****Numerical methods and mathematical modeling**

**REGISTRATION OF PARTICIPANTS**

**Online registration, as well as filling in an online application for a report and online abstracts submission for further review, are carried out by ****September 20****, 2017. Accepted reports must be sent before ****September 30****, 2017.**

**PUBLICATIONS:**** After the receipt of the second announce with notification about a decision to preliminary review the submitted abstracts (after reviewing), the text of the report (no more than 2 pages in A4 format) for publication in the Proceedings should be sent to the email adress apdea2017@gmail.com. According to the form given on the conference website apdea.nuu.uz the publications will receive materials in the LaTex format (*** template is given below*

**), presented in one of the three working languages of the conference and drawn up in accordance with the TEX.tamplate. The availability of the abstract in English is compulsory (see www.apdea.nuu.uz).**

Responsibility for the content and execution of articles is entirely the responsibility of the author who registered the application for the relevant report. Additional editing and formatting of the submitted materials is not provided.

Responsibility for the content and execution of articles is entirely the responsibility of the author who registered the application for the relevant report. Additional editing and formatting of the submitted materials is not provided.

**Tex template: **

\documentclass[a4paper,11pt]{book}

\usepackage{amsmath, amsfonts, amssymb}

\usepackage[english, russian]{babel}

\textheight = 230mm \textwidth = 160mm \topmargin = -2mm

\oddsidemargin=6mm \evensidemargin=6mm \makeindex

\def\G{Ѓ}

\def\g{Ў}

\def\Q{‰}

\def\q{©}

\def\U{’}

\def\u{І}

\def\H{•}

\def\h{µ}

\def\Yo{њ}

\def\yo{ј}

\usepackage{graphicx}

\begin{document}

\sloppy

\begin{center}

\textbf{TITLE OF REPORT}\\[5pt]

% Authors

\textbf{N.Surname1 $^{1}$, N.Surname2 $^{2}$,}

%

\medskip

{$^1$ Name of organization, Sity, Country)\\

$^2$ Name of organization, Sity, Country\\

{$^1$\verb"e-mail",\ $^2$\verb"e-mail"}}\\

\end{center}

Text of report.

%

%

\textbf{Теорема.}

\textit{ text of theorem.}

%

% numeration of formulas must given by \eqno.

%

%

%

{\small

\centerline{\bf References}

\vspace{-0.2cm}

\begin{enumerate}

\item {\it N.~Surname.} {Title of book. Sity: Publisher, y. p.}

\item {\it N.~Surname.} { Title of paper in journals~/\!/ Journal Title, Y. Vol..~?, №~?. P.~??-??.}

\item {\it N.~Surname1., N.~Surname2.}

{Title of paper~/\!/ Title of collection. Sity: Publisher, Y. P.~??-??.}

\end{enumerate} }

\end{document}

**IMPORTANT DATES**

** Application for participation, presentation of abstracts (2 pages): until 20,09. 2017 (online)
Inclusion of the declared report in the conference program: until 30.09.2017 (online)
The work of the Conference: 15.12.2017-17.12.2017
Closing of the conference: 17.12.2017**

******************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************

**Second Announcement**

**We are pleased to invite you to participate in the International Conference on “**

*Actual problems of differential equations and their applications*” , which will be held at the National University of Uzbekistan. december 15-17, 2017, Tashkent, Uzbekistan.**Sections of the conference:**

**Degenerating and mixed type equations****Non-classical problems of the theory PDEs****Ordinary differential equations and dynamical systems****Spectral theory of operators and related problems of analysis****Non-correct and inverse problems****Methods of functional analysis and algebra on the theory of differential equations****Numerical methods and mathematical modeling**

**REGISTRATION OF PARTICIPANTS**

The Organizing Committee decided to extend the registration and receipt of abstracts on** October 15, 2017**, confirmation of acceptance of reports **October 30, 2017**.

**Registration fee.**

Registration fee includes the publication of a collection of abstracts of conference reports, conference handouts, coffee breaks, reception, one dinner on **December 15**.*For nonresident participants, the registration fee includes lunches during the conference, **also**.***Registration fee**:

• 50000 soums for citizens of Uzbekistan

• 50$ for nonresident paticipants**The way of payment of the registration fee**: the fee can be paid in cash upon registration before the beginning of the conference.**The cultural program:**

The organizing committee of the conference plans to organize tour for visiting participants to the main historical places of **Tashkent** and **Samarkand**. **The costs of the cultural program are not included in the registration fee.**

**Important dates:****Registration of participants**: **October 15, 2017****Submission of abstracts**: **October 15, 2017****Confirmation of ****acceptance **** of reports: October 30, 2017**

**Location of conference:** ** ****Faculty of Mathematics. National University of Uzbekistan.**

** Universitetskaya-4 str. Vuzgorodok. Tashkent.Uzbekistan. 100125.**

** Phone: (871)246-84-29, +998974775277, +998903209610. Fax: (871)227-15-54**

** E-mail**: apdea2017@gmail.com, www.apdea.nuu.uz.