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Number of items: **7**.

Burton, Theodore A. and Purnaras, Ioannis K.:
*Necessary and sufficient conditions for large contractions in fixed point theory.*
In: Electronic journal of qualitative theory of differential equations 94.
pp. 1-24. (2019)

Burton, Theodore A. and Purnaras, Ioannis K.:
*Positive kernels, fixed points, and integral equations.*
In: Electronic journal of qualitative theory of differential equations : special edition, (3) 44.
pp. 1-21. (2018)

Burton, Theodore Allen and Purnaras, Ioannis K.:
*Positive kernels, fixed points, and integral equations.*
In: Electronic journal of qualitative theory of differential equations 44.
pp. 1-21. (2018)

Burton, Theodore Allen and Purnaras, Ioannis K.:
*Global existence and uniqueness of solutions of integral equations with delay : progressive contractions.*
In: Electronic journal of qualitative theory of differential equations 49.
pp. 1-6. (2017)

Becker, Leigh C. and Burton, Theodore Allen and Purnaras, Ioannis K.:
*Complementary equations: a fractional differential equation and a Volterra integral equation.*
In: Electronic journal of qualitative theory of differential equations 12.
pp. 1-24. (2015)

Purnaras, Ioannis K.:
*On the existence of solutions to some nonlinear integrodifferential equations with delay.*
In: Electronic journal of qualitative theory of differential equations 22.
pp. 1-21. (2007)

Purnaras, Ioannis K.:
*A note on the existence of solutions to some nonlinear functional integral equations.*
In: Electronic journal of qualitative theory of differential equations 17.
pp. 1-24. (2006)