Conferences & Seminars

• The 9th DEDS*, “Disconjugacy via Lyapunov and Vallée-Poussin type inequalities for forced differential equations”, May 14-16, 2015, Texas A&M University-Commerce, University Center Dallas, Dallas, TX, USA.

 

• “Disconjugacy via Lyapunov and Vallée-Poussin type inequalities for forced differential equations”, April 8, 2015, Texas A&M University-Kingsville, Department of Mathematics, TX, Kingsville, USA.

 

• International Congress in Honour of Professor Ravi P. Agarwal, “Nonprinciple solutions and extensions of Wong’s oscillation criteria to forced second-order impulsive and delay differential equations”, June 2014, Uludag University, Bursa, Turkey.

 

• ICNDDE* 2014, “Sturmian theory for second order differential equations with mixed nonlinearities”, May 2014, Side, Antalya, Turkey.

 

• “Sturmian theory for second order differential equations with mixed nonlinearities”, April 30, 2014, Ankara University, Turkey.

 

• DSS*, “Sturmian theory for second order differential equations with mixed nonlinearities”, November 30, 2013, METU*, Ankara, Turkey.

 

• “Nonprinciple solutions and Wong’s type oscillation criteria for forced second-order impulsive and delay differential equations”, October 2013, Atilim University, Ankara, Turkey.

 

• 6th International Workshop on Differential Equations and Applications (WDEA 2013), “Wong's type oscillation theorem for second-order delay differential equations”, September 2013, Izmir University of Economics, Izmir, Turkey.

• 26. Ulusal Matematik Sempozyumu, “A Wong type oscillation theorem for second-order delay differential equations via nonprincipal solutions”, Eylül 2013, Dicle Üniversitesi, Diyarbakır, Türkiye.

• 12th International Workshop on Dynamical Systems and Applications (IWDSA 2013), “Forced oscillation of second-order delay differential equations via nonprinciple solution”, August 2013, Atilim University, Ankara, Turkey.

• 16th International conference DSMSI-2013, "Forced oscillation of second-order delay differential equations via nonprinciple solution", May 2013, Taras Shevchenko National University of Kiev, Ukraine.

 

• "Forced oscillation of second-order delay differential equations via nonprinciple solution", April 2013, Hacettepe University in Ankara.

 

• DSS, "Forced oscillation of second-order delay differential equations via nonprinciple solution", April 2013, METU in Ankara. 

 

• "Forced oscillation of second-order delay differential equations via nonprinciple solution", April 2013, Çankaya University in Ankara. 

 

• The 11th IWDSA, "Oscillation criterion for half-linear impulsive differential equations with periodic coefficients”, June 2012, Çankaya University in Ankara - Turkey.

 

• "Nonprincipal solutions of impulsive differential equations with applications and recent developments”, November 2011, Masaryk University in Brno- Czech Republic.

 

• 8th ISAAC, "A nonoscillation criterion for half-linear impulsive differential equations with periodic coefficients”, Aug 2011, Peoples' Friendship University of Russia, in Moscow - Russia.

 

• 8th AIMS, ICDSDEA, "Forced oscillations of super-linear and sub-linear differential equations with positive and negative coefficients”, May 2010, Technical University of Dresden, in Dresten - Germany.

 

• 7th ISAAC, “Principal and non-principal solutions of impulsive differential equations with applications”, July 2009, Imperial College in London - UK. 
• DSS, "On principal and non-principal solutions of second order differential equations", May 2009, METU in Ankara. 

 

• DSS, "Interval criteria for forced oscillation of super-half-linear differential equations under impulse effect", November 2008, METU in Ankara. 

 

• ADES, "Forced oscillation of second order linear and half-linear difference equations", February 2008, METU in Ankara. 

 

• 6th ISAAC, “Oscillation criteria for second order non-linear impulsive differential equations”, August 2007, METU in Ankara. 

 

• ADES, “Picone’s formula for linear non-selfadjoint impulsive differential equations”, June 2006, ATU in Ankara. 

 

• The First International Workshop on Dynamic Equations on Time Scales, June 2005, Bahçeşehir University in Istanbul. 

 

• ADES, Part I: “Picone’s formula for linear impulsive differential equations”, Part II: “Picone’s formula for linear non-selfadjoint impulsive differential equations”,
  February 2005, METU in Ankara. 

 

• ADES, “Sturmian–Leighton type comparison theory for linear and half-linear impulsive differential equations”, March 2002, Gazi University in Ankara. 

 

• Days of Applied Mathematics, June 2000, Zonguldak Karaelmas University. 

 

• Days of Applied Mathematics, November 1998, Sakarya University.