## Metrics

## Education Information

2014 - 2019

2014 - 2019###
**Doctorate**

#### Van Yüzüncü Yil University, Fen Fakültesi, Matematik, Turkey

2012 - 2014

2012 - 2014###
**Postgraduate**

#### Van Yüzüncü Yil University, Fen Fakültesi, Matematik, Turkey

2005 - 2009

2005 - 2009###
**Undergraduate**

#### Istanbul University, Faculty Of Science, Matematik, Turkey

## Dissertations

2019

2019###
**Doctorate**

#### Some ergodic theorems for multipliers of commutative Banach algebras

##### Van Yüzüncü Yil University, Fen Fakültesi, Matematik Bölümü

2012

2012###
**Postgraduate**

#### Existence problem of solution of neutral functional differential equation with degree theory

##### Van Yüzüncü Yil University, Fen Fakültesi, Matematik Bölümü

## Research Areas

**Mathematics**

**Functional Analysis**

**Natural Sciences**

## Academic Titles / Tasks

2012 - Continues

2012 - Continues###
**Research Assistant PhD**

#### Van Yüzüncü Yil University, Fen Fakültesi, Matematik Bölümü

## Published journal articles indexed by SCI, SSCI, and AHCI

2022

2022###
**The behavior of iterates of multipliers in commutative Banach algebras**

#### Mustafayev H., Topal H.

##### ANNALES POLONICI MATHEMATICI , vol.128, pp.233-247, 2022 (SCI-Expanded)

2021

2021###
**ERGODIC PROPERTIES OF CONVOLUTION OPERATORS IN GROUP ALGEBRAS**

#### Mustafayev H., Topal H.

##### COLLOQUIUM MATHEMATICUM , vol.165, no.2, pp.321-340, 2021 (SCI-Expanded)

2019

2019###
**Some ergodic properties of multipliers on commutative Banach algebras**

#### Mustafayev H., Topal H.

##### TURKISH JOURNAL OF MATHEMATICS , vol.43, no.3, pp.1721-1729, 2019 (SCI-Expanded)

## Articles Published in Other Journals

2016

2016###
**EXISTENCE PROBLEM OF PERIODIC SOLUTION OF NEUTRAL FUNCTIONAL DIFFERENTIAL EQUATIONS WITH DEGREE THEORY**

#### Topal H.

##### INTERNATIONAL JOURNAL OF DIFFERENTIAL EQUATIONS AND APPLICATIONS , vol.15, no.1, pp.33-53, 2016 (Peer-Reviewed Journal)

## Refereed Congress / Symposium Publications in Proceedings

2021

2021###
**On the vector-valued Banach algebra 𝒍𝒑(𝑿, 𝑨)**

#### Topal H.

##### 5th INTERNATIONAL CONFERENCE ON COMPUTATIONAL MATHEMATICS AND ENGINEERING SCIENCES, Van, Turkey, 8 - 10 June 2021, pp.79

2019

2019###
**Properties of the Banach algebra obtained from a given Banach algebra by using a left multiplier**

#### Topal H.

##### 4th International Conference On Computational Mathematics and Engineering Seçince (CMES-2019) , Antalya, Turkey, 20 - 22 April 2019, pp.194

2019

2019###
**Theorem of Katznelson-Tzafriri Type for Multipliers on Banach algebra**

#### Topal H.

##### International Conference on Applied Analysis and Mathematical Modeling, 2019, İstanbul, Turkey, 10 - 13 March 2019, pp.1-3

2019

2019###
**A Katznelson-Tzafriri type theorem for Multipliers**

#### Topal H.

##### International Conference on Applied Analysis and Mathematical Modeling, 2019, İstanbul, Turkey, 10 - 13 March 2019, pp.10-12

2018

2018###
**Some Convergence Theorems for Multipliers**

#### Mustafayev H., Topal H.

##### International Conference on Mathematics and Mathematics Education , Ordu, Turkey, 27 - 29 June 2018, pp.199-200

2017

2017###
**Strongly Convergence Of Multipliers On Banach Algebras**

#### Mustafayev H., Topal H.

##### International Conference on Mathematics and Mathematics Education , Şanlıurfa, Turkey, 11 - 13 May 2017, pp.354-355

2015

2015###
**On existence problem of periodic solution of neutral functional differential equations by means of operators**

#### Topal H.

##### International Conference on Advancements in Mathematical Sciences (AMS), Antalya, Turkey, 5 - 07 November 2015, pp.11-12

## Supported Projects

2019 - 2022

2019 - 2022###
**Some Applications of Banach Algebra Techniques to Ergodic Theory**

#### TUBITAK Project

##### Mustafayev H. (Executive)

2020 - 2021

2020 - 2021###
**Spektrumu Sonlu Sayıda Olan Operatörlerin Spektral Teorisi Üzerine**

#### Project Supported by Higher Education Institutions

##### Mustafayev H. (Executive), Topal H.

2018 - 2019

2018 - 2019###
**Banach Cebirlerinde Çarpanlar İçin Bazı Yakınsama Kriterleri**

#### Project Supported by Higher Education Institutions

##### Mustafayev H. (Executive), Topal H.

2018 - 2018

2018 - 2018###
**International Conference on Pure and Applied Mathematics (ICPAM 2018)**

#### Project Supported by Higher Education Institutions

##### Tunç C. (Executive), Denizler İ. H., Topal H.

2016 - 2017

2016 - 2017