- Aug 11 - Alternative definition of the first nontrivial Fucik curve
- Apr 24 - Counterexample to a lower bound for the first Dirichlet-Neumann eigenvalue
- Mar 25 - Hadamard shape derivative formula for quasilinear problems. Forgotten references

- Aug 28 - A Picone-type inequality
- Apr 7 - $p$-Laplacian in polar coordinates
- Mar 29 - Optimality of an upper bound for the number of ordered factorizations of odd numbers
- Jan 10 - Pleijel's type estimate for the $p$-Laplacian

- Nov 8 - Higher-order variations of the $p$-Dirichlet energy
- Oct 19 - Sobolev-type inequality with product of norms
- Sep 25 - Growth rate of divisor function for odd numbers
- May 15 - Eigenvalues of cylinders
- May 3 - Can the multiplicity be purely geometric?
- Apr 6 - A wrong integral criterion for Bourget's hypothesis
- Mar 29 - Asymptotic relation for zeros of cross-product of Bessel functions
- Feb 14 - Asymptotic multiplicity of eigenvalues
- Feb 12 - Eigenvalue in a ring with multiplicity 3
- Jan 28 - Pleijel's constant for the disk is 0.4613019...
- Jan 21 - Quantified version of improved Faber-Krahn inequality for $p$-Laplacian