Description: R. Aravire and B. Jacob, $H^1(X,\nu)$ of conics and Witt kernels in characteristic $2$; K.J. Becher and D. B. Leep, Pythagoras numbers and quadratic field extensions; A.-M. Berge and J. Martinet, On perfection relations in lattices; S. Bocherer, Y. Hironaka, and F. Sato, Linear independence of local densities of quadratic forms and its application to the theory of Siegel modular forms; M. Dickmann and F. Miraglia, Representation of reduced special groups in algebras of continuous functions; T. D. Browning and R. Dietmann, Solubilty of Fermat equations; A. G. Earnest and R. W. Fitzgerald, Multiplicative properties of integral binary quadratic forms; L. Fukshansky, Effective structure theorems for symplectic spaces via height; S. Garibaldi and K. Zainoulline, Orthogonal involutions on algebras of degree 16 and the Killing form of $E_8$ (Appendix A: Non-hyperbolicity of orthogonal involutions); S. Gille, The first Zariski cohomology group of the Witt sheaf over a split simply connected simple algebraic group; P. Gladki and M. Marshall, On families of testing formulae for a pp formula; T. Ibukiyama and S. Wakatsuki, Siegel modular forms of a small weight and the Witt operator; N. A. Karpenko, On isotropy of quadratic pairs; M. Knebusch, Specialization of forms in the presence of characteristic 2: first steps; W. Kohnen, Representation of integers by special positive definite integral quadratic forms; A. Laghribi and P. Mammone, Hyper-isotropy of bilinear forms in characteristic 2; D. B. Leep, A historical view of the Pythagoras numbers of fields; M. Machura and K. Osiak, The extensions of $\mathbb R$-places and application; A. S. Merkurjev, Essential dimension; R. Parimala, V. Suresh, and J.-P. Tignol, On the Pfister number of quadratic forms; R. Scharlau, Martin Kneser's work on quadratic forms and algebraic groups; A. Schurmann, Enumerating perfect forms; N.-P. Skoruppa, Reduction mod $\ell$ of Theta series of level $\ell^n$; L. H. Walling, On a reciprocity theorem of Gauss; T. Watanabe and R. Yoshimitsu, A bound of the number of reduced Arakelov divisors of a number field.

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