We study the thermodynamic properties -- pressure, entropy and trace anomaly of a gas glueballs that includes glueball states obtained by various lattice simulations. show this model, called Glueball Resonance Gas (GRG) approach, describes well thermal Yang-Mills sector QCD below critical temperature $T_c$, provided $T_c$ is properly matched to corresponding determination masses, obtaining $T_c...

Let G be a reductive group, and let U, U− the unipotent radicals of pair opposite parabolic subgroups P, P−. We prove that DG categories U((t))-equivariant U−((t))-equivariant D-modules on affine Grassmannian GrG are canonically dual to each other. show unit object witnessing this duality is given by nearby cycles Drinfeld–Gaitsgory–Vinberg interpolation defined in recent work Finkelberg, Krylo...

سابقه و هدف: در کشور ایران از حدود 5/88 میلیارد مترمکعب آب استحصال‌شده منابع سطحی زیرزمینی، ۸۳ یعنی 5/93 درصد به بخش کشاورزی اختصاص می‌یابد، بزرگ‌ترین مصرف‌کننده است. مصرف رو افزایش معلول جمعیت، سطح زیر کشت تولیدات هست که به‌تبع آن سبب کاهش دسترسی افت ایستابی تخلیه آبخوان‌ها شده آمارها نشان می‌دهند این استراتژیک، تهدید کمیت کیفیت است ­طوری ­که هم ­اکنون تعداد زیادی دشت­ های شرایط بحرانی قرار دا...

Two examples, not connected at present, from author’s papers (Nuovo Cim., 1992, v.105A, p.77 [hep-th/0207210] and GRG, 1999, v.31, p.1431 [gr-qc/0207017]) are considered here in which a physical model has discrete symmetries and additional non-observable coordinates or parameters. Then it is possible to introduce some apparent continuous symmetries of the model for an observer which cannot know...

Stainless steel (SS316L) is applied in numerous fields due to its intrinsic properties. In this study, micro-dimples were fabricated on SS316L. The effects of laser process parameters, such as frequency, average power, and pulse duration, the dimple diameter, distance, depth studied using an L9 orthogonal array. analysis variance (ANOVA) multi-objective optimization technique, principal-compone...