Application of PDE Methods to Visualization of Heart Data. - Ognyan Kounchev; Michael J. Wilson (IMA Conference on the Mathematics of Surfaces, 2003)

Cardinal interpolation with polysplines on annuli. - Ognyan Kounchev; Hermann Render (J. Approx. Theory, 2005)

Polyharmonic splines on grids ℤ x aℤn and their limits. - Ognyan Kounchev; Hermann Render (Math. Comput., 2005)

On real-analytic recurrence relations for cardinal exponential B-splines. - J. M. Aldaz; Ognyan Kounchev; Hermann Render (J. Approx. Theory, 2007)

Convergence of polyharmonic splines on semi-regular grids mathbbZ× a mathbbZn for a®0. - Ognyan Kounchev; Hermann Render (Numer. Algorithms, 2007)

On a new multivariate sampling paradigm and a polyspline Shannon function - Ognyan Kounchev; Hermann Render (CoRR, 2008)

Shape preserving properties of generalized Bernstein operators on Extended Chebyshev spaces. - J. M. Aldaz; Ognyan Kounchev; Hermann Render (Numerische Mathematik, 2009)

Polyharmonic Daubechies type wavelets in image processing and astronomy, I. - Ognyan Kounchev; Damyan Kalaglarsky (CompSysTech, 2010)

Polyharmonic Daubechies type wavelets in image processing and astronomy, II. - Ognyan Kounchev; Damyan Kalaglarsky; Milcho Tsvetkov (CompSysTech, 2010)

Bernstein operators for extended Chebyshev systems. - J. M. Aldaz; Ognyan Kounchev; Hermann Render (Appl. Math. Comput., 2010)

Quantization opportunities for polyharmonic subdivision wavelets applied to astronomical images. - Ognyan Kounchev; Damyan Kalaglarsky (CompSysTech, 2011)

Compressive sensing for polyharmonic subdivision wavelets with applications to image analysis. - Ognyan Kounchev; Damyan Kalaglarsky (CompSysTech, 2012)

Interpolation of data functions on parallel hyperplanes. - Ognyan Kounchev; Hermann Render (J. Approx. Theory, 2019)

The TVBG-SEIR spline model for analysis of COVID-19 spread, and a Tool for prediction scenarios. - Ognyan Kounchev; Georgi Simeonov; Zhana Kuncheva (CoRR, 2020)

Error bounds for interpolation with piecewise exponential splines of order two and four. - Ognyan Kounchev; Hermann Render (CoRR, 2020)

Error estimates for interpolation with piecewise exponential splines of order two and four. - Ognyan Kounchev; Hermann Render (J. Comput. Appl. Math., 2021)

Error estimates for harmonic and biharmonic interpolation splines with annular geometry. - Ognyan Kounchev; Hermann Render; Tsvetomir Tsachev (CoRR, 2022)

Spectral properties of the Laplacian of temporal networks following a constant block Jacobi model. - Zhana Kuncheva; Ognyan Kounchev (CoRR, 2023)

Fast algorithms for interpolation with L-splines for differential operators L of order 4 with constant coefficients. - Ognyan Kounchev; Hermann Render; Tsvetomir Tsachev (J. Comput. Appl. Math., 2023)

On the critical length conjecture for spherical Bessel functions in CAGD. - Ognyan Kounchev; Hermann Render (CoRR, 2025)