# About Me

I am a postdoctoral researcher at the Department of Computer Science, Toronto Metropolitan University .
My main area of interest is computational geometry.
Particularly, I am interested in visibility graphs and unit disk graphs.

I am a member of Geometric Computing Lab.

###### address

245 Church St.

Toronto, ON

M5B 1Z4

cagirici@ryerson.ca

###### phone

TBA

# Research

My areas of interest

###### Conflict-free coloring of polygon visibility graphs

**Conflict-free coloring** of a simple graph is assigning colors to a subset of vertices such that every vertex in the graph sees a unique color. A polygon visibility graph is a graph that describes the visibility relations among the vertices of a given polygon.

###### Unit disk graph recognition on restricted domains

**Recognizing** of a unit disk graph is determining whether a given simple graph can be realized as an intersection graph of unit disks.
A **restricted domain** is a pre-determined solution space in which the disks are allowed to be centered.

###### Maximum clique of a disk set

A **clique** is a set of disks where each disk mutually intersect. The aim is to find such a set with maximum cardinality. It is not yet known whether this problem is tractable.

Events I have attended

###### Workshops

May 2019, Telč, Czech Republic -- ATCAGC '20

May 2019, Telč, Czech Republic -- Crossing Numbers Workshop '19

October 2017, Telč, Czech Republic -- MEMICS '17

May 2017, Osnabrück, Germany -- Crossing Numbers Workshop '17

October 2016, Telč, Czech Republic -- MEMICS '16

###### Symposiums/Conferences

July 2022, Santander, Spain -- DMD '22

September 2021, Online -- EUROCOMB '21

August 2021, Online -- CSGT '21

August 2020, Online -- CSGT '20

June 2020, Online -- CSR '20

June 2020, Online -- WG '20

September 2019, Průhonice, Czech Republic -- GD '19

June 2019, Smižany, Slovakia -- CSGT '19

May 2018, Budapest, Hungary -- SoCG '18

###### Miscellaneous

April 2017, Žďár nad Sázavou, Czech Republic -- Spring School of Combinatorics '17

December 2016, Prague, Czech Republic -- CE-ITI '16

# Short CV

For my full CV click here.

## Activities

**2022**

visiting researcher at Jagiellonian University *Kraków, Poland*

**2021**

postdoctoral researcher at TMU *Toronto, Canada*

**2019**

visiting researcher at ENS de Lyon *Lyon, France*

**2017**

visiting researcher at UASLP *San Luis Potosí, Mexico*

visiting researcher at UNAM *Mexico City, Mexico*

visiting researcher at Cinvestav *Mexico City, Mexico*

visiting researcher at Jagiellonian University *Kraków, Poland*

**2016 - 21**

PhD at Masaryk University *Brno, Czech Republic *

**2012-15**

MSc at Izmir University of Economics *Izmir, Turkey*

**2010**

Internship at University of Cantabria *Santander, Spain*

**2008**

Internship at Coretech *Istanbul, Turkey*

**2007-11**

BSc at Izmir University of Economics *Izmir, Turkey*

## Publications

O. Çağırıcı, Y. Bahoo, S. LaValle: Bouncing Robots in Rectilinear Polygons. *MMAR '22*

O. Çağırıcı, P. Hliněný, F. Pokrývka, A. Sankaran: Clique-Width of Point Configurations. *JCTB '21*

D. Ağaoğlu, O. Çağırıcı: Unit disk visibility graphs. *EUROCOMB '21*

O. Çağırıcı, P. Hliněný, F. Pokrývka, A. Sankaran: Clique-Width of Point Configurations. *WG '20*

O. Çağırıcı: On embeddability of unit disk graphs onto straight lines. *CSR '20*

O. Çağırıcı, S. K. Ghosh, P. Hliněný, B. Roy: On conflict-free chromatic guarding of simple polygons. *COCOA '19*

O. Çağırıcı, P. Hliněný, B. Roy: On Colourability of Polygon Visibility Graphs. *FSTTCS '17*

O. Çağırıcı, L. Casuso, C. Medina, T. Patiño, M. Raggi, E. Roldán-Pensado, G. Salazar, J. Urrutia: On upward straight-line embeddings of oriented paths. * ECG '17 *