No date set.

## Improved regularity for a time-dependent Isaacs equation

### Giane Casari Rampasso

#### University of Campinas, Brazil   -   This email address is being protected from spambots. You need JavaScript enabled to view it. document.getElementById('cloak391504e17e522605a3816bae97e9b9e7').innerHTML = ''; var prefix = '&#109;a' + 'i&#108;' + '&#116;o'; var path = 'hr' + 'ef' + '='; var addy391504e17e522605a3816bae97e9b9e7 = 'g&#105;&#97;n&#101;cr' + '&#64;'; addy391504e17e522605a3816bae97e9b9e7 = addy391504e17e522605a3816bae97e9b9e7 + '&#117;n&#105;c&#97;mp' + '&#46;' + 'br'; var addy_text391504e17e522605a3816bae97e9b9e7 = 'g&#105;&#97;n&#101;cr' + '&#64;' + '&#117;n&#105;c&#97;mp' + '&#46;' + 'br';document.getElementById('cloak391504e17e522605a3816bae97e9b9e7').innerHTML += '<a ' + path + '\'' + prefix + ':' + addy391504e17e522605a3816bae97e9b9e7 + '\'>'+addy_text391504e17e522605a3816bae97e9b9e7+'<\/a>';

The purpose of this work is to discuss a regularity theory for viscosity solutions to a parabolic problem driven by the Isaacs operator. Under distinct smallness regime imposed on the coefficients, our findings are three-fold; first, we produce estimates in Sobolev spaces. It includes operators with dependence on the gradient. Then we examine the regularity in Hölder spaces. Here we deal with the boderline case and, if we refine the smallness regime, estimates in $\mathcal{C}^{2+\gamma,\frac{2+\gamma}{2}}$ are produced. This is done through geometric and approximation techniques with preliminary compactness and localization arguments.

Joint work with Pêdra D. S. Andrade (Centro de Investigación en Matemáticas, Mexico) and Makson S. Santos (Centro de Investigación en Matemáticas, Mexico).